Rocket Launches, Trips to Mars and More 2020 Space and Astronomy Events – The New York Times

If you follow space news and astronomy, the past year offered no shortage of highlights. Astronomers provided humanitys first glimpse of a black hole. China landed on the moons far side. And the 50th anniversary of the Apollo 11 moon landing inspired us to look ahead to our future in space.

The year to come will be no less eventful:

No fewer than four missions to Mars could leave Earth this summer.

NASA may finally launch astronauts into orbit aboard capsules built by SpaceX and Boeing.

We expect to learn more secrets about the interstellar comet Borisov.

And private companies are working to demonstrate new abilities in space.

However much you love space and astronomy, it can be challenging to keep up with the latest news in orbit and beyond. Thats why weve put dates for some of these events on The Timess Astronomy and Space Calendar, which has been updated for 2020. Subscribe on your personal digital calendar to be automatically synced with our updates all year long. (We promise not to collect any personal information from your private calendar when you sign up.)

[Sync your calendar with the solar system.]

Below are some of the launches, space science and other events to look forward to.

Roughly every two years, the orbits of Earth and Mars come closer than usual. Space agencies on Earth often send missions to the red planet during that window, and in 2020 four such launches are scheduled.

Three of the missions will carry rovers. The United States is launching the soon-to-be-renamed Mars 2020 rover, which also carries a small helicopter. It will try to land in Jezero Crater, which once contained a lake and could preserve evidence of life, if life ever existed there.

Neither China, Europe nor Russia has deployed a rover on the Martian surface. But they will try, in a pair of missions. Chinas mission, its first on its own to the red planet, includes an orbiter in addition to a rover. The European Space Agency and Russia cooperated to build Rosalind Franklin, a rover named for the English chemist whose work was essential to finding the structure of DNA.

The rovers could be joined on Mars by Hope, an orbiter commissioned by the United Arab Emirates. It is being built in Colorado, and is to be launched on a Japanese rocket. If it succeeds, it could represent a new model for space programs, in which small, wealthy countries pay for off-the-shelf spacecraft to get themselves into orbit and beyond.

Since the space shuttles last flight, in 2011, NASA has relied on Russias Soyuz spacecraft for trips to and from the International Space Station. In 2019, NASA hoped to begin flying astronauts aboard capsules built by two private companies, SpaceX and Boeing, but persistent delays knocked back the timeline another year.

NASAs commercial crew program could finally achieve its goal in 2020. SpaceXs Crew Dragon is scheduled to conduct an uncrewed test of its in-flight abort system on Jan. 11. If the test succeeds, the capsule could carry astronauts to the space station not long after.

Boeings Starliner experienced problems during its first uncrewed test flight in December and was unable to dock with the space station. An upcoming review of that test will determine whether Starliner might still be able to fly into orbit with astronauts in the first half of this year.

Virgin Galactic, the space-plane company run by Richard Branson, conducted two successful test flights with crew aboard in the past 13 months. In the year to come, the company could carry its first passengers to the edge of space. Blue Origin, the company founded by Jeff Bezos of Amazon, may follow suit; it has conducted 12 crewless tests of its capsule for short tourist jumps to suborbital space. For now, only the very wealthy will be able to afford such jaunts.

Other private companies are looking to Earth orbit for the future of internet service. SpaceX launched 120 Starlink satellites in 2019 and could launch many more in 2020. A competitor, OneWeb, could send more of its satellites to orbit in the coming year, too. These companies are blazing the trail for orbital internet a business that Amazon and Apple are also pursuing and upsetting astronomers, who fear that large constellations of internet satellites will imperil scientific study of the solar system and stars.

In September, a comet called Borisov 2I was spotted in our solar system, only the second ever confirmed interstellar object. Unlike Oumuamua, which was spotted in 2017 only as it was leaving the solar system, astronomers caught sight of Borisov and its 100,000-mile-long tail as it flew toward the sun, before it turned and began its exit.

In 2020, scientists will continue to point ground and orbiting telescopes at Borisov as it speeds back toward the stars beyond unless, as some astronomers hope, it explodes into fragments after being heated by the sun. Whatever happens, other interstellar visitors are sure to follow, and professional sky gazers hope to find them with powerful new telescopes in the years ahead.

Before the end of 2020, the moon could see one more visitor from Earth. Change-5, a robotic probe built by China, aims to collect moon rock and soil samples and send them back to Earth. The last set of lunar samples was gathered in 1976 by a Soviet spacecraft.

The year to come may also bring greater clarity about American designs for returning to the moon. NASA is aiming to put the first woman and the next man on the moon by 2024, with a program called Artemis. A wide range of political, budgetary and technological hurdles stand in the way of meeting that ambitious timeline.

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Rocket Launches, Trips to Mars and More 2020 Space and Astronomy Events - The New York Times

Astronomy 2020: Every major meteor shower, supermoon and more – The Know

This is a composite of 27 images of the Super Blood Wolf moon as it goes from being a full moon into the full lunar eclipsed moon while rising over Red Rocks Amphitheatre on Jan. 20 in Golden. (Helen H. Richardson, The Denver Post)

This weekend could offer one of the best celestial events of2020 when the Quadrantids meteor shower reaches its peak, assuming the weather cooperates.

Thats just one of the nighttime shows for stargazers to note on their calendars this year. There also will be some fun things to watch regarding the planet Mars in February and October, a special full moon in April and the super conjunction of Jupiter and Saturn in December, when the two largest planets in the solar system appear to come together. That also will coincide with the Winter Solstice.

Here are eight astronomical events to watch for this year:

According to the International Meteor Organization, the Quadrantids have the potential to be the strongest meteor shower of the year, and they are peaking this weekend. The average hourly rates one can expect under dark skies is 25, the IMO says. These meteors usually lack persistent trains (vaporized rock that glows after the meteor burns up in the atmosphere) but often produce bright fireballs.

Get out your binoculars or a telescope if you have one for Feb. 18, when the moon will pass in front of the planet Mars in an event called an occultation. The moon will glide in front of reddish, star-like Mars for viewers across North America, Central America, extreme northern South America, Cuba and Haiti, according to Space.com. A couple of hours later, Mars will show up on the other side of the moon (as seen from Earth). The moon will appear 23% full on that night.

This one comes recommended by John Keller, director of the Fiske Planetarium at the University of Colorado.

Venus will be high in the evening sky in April and pass very close to the Pleiades star cluster, an easy naked-eye target, said Keller, adding that the Pleiades star cluster is easy to spot because it looks like the stars in the Subaru logo. Venus will be highest in the evening sky on March 24, passing by the Pleiades April 2 and April 3. Also of potential interest, Venus will then dive down towards the sun during the month of May and re-emerge in the morning sky in mid-June after passing by the sun on June 3. The waning crescent moon will pass very close by Venus on June 19 and provide a nice guide for observers looking for their first view of Venus in the morning sky.

The moon will be full when its orbit takes it closest to the Earth (called perigee) for the year at 221,772 miles. The moon has an elliptical orbit, and its average distance from Earth is 238,855 miles. Its apogee (farthest distance) is 252,088 miles. Because there is no consensus on what constitutes a supermoon its a matter of how close the moon is to the earth there will be one, two or three other supermoons this year (February, March and May). There also will be a second full moon in October, a so-called blue moon, and it will occur on Halloween.

This will be another highlight of the year for meteor lovers. Peaking Aug. 11-12, the Perseids are the most popular meteor shower in North America.

Normal rates seen from rural locations range from 50-75 shower members per hour at maximum, the International Meteor Organization reports. The Perseids are particles released from comet 109P/Swift-Tuttle during its numerous returns to the inner solar system. They are called Perseids since the radiant (the area of the sky where the meteors seem to originate) is located near the prominent constellation of Perseus the hero when at maximum activity.

The moon will be about half-full when the Perseids peak this year.

According to Space.com, Mars will be spectacular in October. Because of its proximity to Earth, Mars will appear brighter than Jupiter and will be the third-brightest object in the nighttime sky, after the moon and Venus. On Oct. 6, Mars will be only 38.6 million miles from Earth. It wont be that close again until 2035.

According to the IMO, the Geminids meteor shower is usually the strongest of the year, and this year we get a bonus: There will be no moonlight to obscure the view when the Geminids peak Dec. 13-14. Fans of meteor showers may recall that the Geminid peak in 2019 coincided with a nearly full moon.

The Geminids are often bright and intensely colored, the IMO says. Due to their medium-slow velocity, persistent trains are not usually seen.

A conjunction occurs when two planets come closest together on their individual orbits. Conjunctions for these two planets occur approximately every 20 years. On the Winter Solstice this year, Jupiter and Saturn will be the closest they have been to each other since 1623, a so-called super conjunction.

Finally, courtesy of the folks at the Fiske Planetarium, a list of National Aeronautics and Space Administration highlights for 2020:

Feb. 5: Launch of the Solar Orbiter, which was developed by the European Space Agency to study the sun at close approaches every five months

April 11: 50th anniversary of Apollo 13

April 24: 30th anniversary of the Hubble Space Telescope launch

June 30: International Asteroid Day

July 14: 55th anniversary of the first flyby of Mars by Mariner 4

July 17-Aug. 5: Launch window for the Mars 2020 Rover Mission, which will drill for core samples from Martian rocks and soil. The mission takes the next step by not only seeking signs of habitable conditions on Mars in the ancient past, according to the Mars 2020 mission website, but also searching for signs of past microbial life itself.

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Astronomy 2020: Every major meteor shower, supermoon and more - The Know

The Sky This Week from January 3 to 12 – Astronomy Magazine

Saturday, January 4The Quadrantid meteor shower reaches its peak this morning. The slightly gibbous Moon sets around 1 a.m. local time, leaving nearly five hours of darkness for watching. The Quadrantid shower typically produces up to 120 meteors per hour, an average of two per minute, so observers should be in for a great show if the weather cooperates. The meteors appear to radiate from a spot in the northern part of the constellation Botes an area once occupied by the now-defunct constellation Quadrans Muralis a region that climbs highest just before dawn.

Sunday, January 5Earth reaches perihelion, the closest point to the Sun during its year-long orbit, at 3 a.m. EST. The two then lie 91.4 million miles (147.1 million kilometers) apart. It surprises many people to learn that Earth comes closest to the Sun in the dead of winter, but the cold weather in the Northern Hemisphere at this time of year arises because the Sun lies low in the sky.

The Sun is in the news more than once today. Although people in the Northern Hemisphere experienced the shortest day of the year two weeks ago (at the winter solstice December 21), the Sun has continued to rise slightly later with each passing day. That trend stops this morning for those at 40 north latitude. Tomorrows sunrise will arrive a second earlier than todays. This turnover point depends on latitude. If you live farther north, the switch occurred a few days ago; closer to the equator, the change wont happen until later this month.

Monday, January 6Venus gleams in the southwestern sky after sunset. The brilliant planet stands out just a half hour after sunset, when it appears 20 above the horizon, and remains on display until 7:30 p.m. local time. Shining at magnitude 4.0, it is by far the brightest point of light in the night sky. A telescope shows Venus disk, which spans 13" and appears about 80 percent lit.

Tuesday, January 7The brightest star in the sky (after the Sun, of course) puts on quite a show on January evenings. Gleaming at magnitude 1.5, Sirius shines nearly four times brighter than the next brightest star visible from mid-northern latitudes: Arcturus in the constellation Botes. Sirius currently rises before 7 p.m. local time and ascends in the southeast throughout the evening hours.

Wednesday, January 8If youre game for a quick evening challenge, try to spot Neptune through binoculars. The distant planet lies 30 high in the southwest near the end of evening twilight and doesnt set until nearly 10 p.m. local time. The magnitude 7.9 world appears against the backdrop of Aquarius, 1.0 west-southwest of the 4th-magnitude star Phi (f) Aquarii. Youll need binoculars to spy Neptune and a telescope to see its blue-gray disk, which spans 2.2".

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The Sky This Week from January 3 to 12 - Astronomy Magazine

Thousands of astronomers are gathering in Honolulu as TMT discord looms – Honolulu Star-Advertiser

An event described as the Super Bowl of astronomy kicks off Saturday in Honolulu as thousands of scientists descend on the Hawaii Convention Center for the biggest meeting of the year for American astronomers.

With the high-profile Thirty Meter Telescope controversy continuing to rage in Hawaii, it would be no surprise if the attendees are greeted by anti-TMT demonstrators.

Thats what happened four years ago when the worlds largest astronomy convention, the International Astronomical Union General Assembly, convened at the same venue.

This years convention, which runs through Wednesday, is the 235th meeting of the American Astronomical Society. More than 3,400 astronomers, educators and students are planning to take in numerous presentations, panels, lectures, town halls, exhibits and the unveiling of new discoveries.

Organizers said the meeting is shaping up to be the biggest and busiest in the societys 120-year history.

Anti-TMT organizer Laulani Teale said TMT opponents have asked the events organizers to let them address the convention.

We want to make sure the astronomers get the correct information, Teale said. We want them to know what it really means to align science with indigenous protection. Hopefully, we will find people who can understand that stopping the TMT is the first step in that alignment.

Teale said the convention hasnt responded to the request yet, but she did acknowledge it was made at the last minute.

Weve been a little busy on the mountain, she said.

For the last five months, protesters have been blocking Mauna Kea Access Road to prevent construction of the $1.4 billion project, planned as one of the worlds most powerful telescopes and highly anticipated within the astronomy community.

Last week Hawaii County Mayor Harry Kim gave his personal guarantee there would be no attempt to move TMT equipment up the mountain to start construction in January or February, and the demonstrators agreed, moving to the side of the road.

According to the conventions web page, the American Astronomical Society plans to engage the controversy directly with a series of panels and presentations.

Among other things, there will be special sessions to discuss Innovative Collaborations of Integrity With the Hawaiian Community, The Many Facets of Hawaii Astronomy and Astronomy and Culture Best Practices for Systematic Transformation in an Increasingly Diverse and Interconnected Global Society.

No one who is directly involved in the ongoing protest appears to be involved in the sessions.

I hope they have a substantial dialogue about the TMT, science and the cultural aspect. You cant just look at it in a vacuum. The science needs to evolve into its own humanity, said Mauna Kea Hui leader Kealoha Pisciotta, a former Mauna Kea telescope technician.

In a news release, society President Megan Donahue of Michigan State University said the controversy is about much more than the construction of a new telescope on a mountain many Hawaiians consider sacred.

Its also about the historical mistreatment of indigenous people, the islands economy and many other complex and interrelated issues, she said.

There are a number of public events, including a talk called Physics of Po, by Larry Kimura, UH Hilos College of Hawaiian Language &Hawaiian Studies, and Canada-France-Hawaii Telescope Executive Director Doug Simons. The Monday presentation explores the intersection of astronomy and Hawaiian culture by examining the first 11 lines of the 2,102-line Kumulipo, a 1,000-year-old Hawaiian creation chant whose name has been translated to beginning in deep darkness.

On Sunday evening University of Hawaii astronomer Roy Gal will host a free star party at Ala Moana Park featuring telescopic views of Hawaiis winter sky.

On Sunday UH Institute for Astronomy professor emerita Ann M. Boesgaard will present the Henry Norris Russell Lecture about her work using light-element abundances to test big-bang nucleosynthesis and to probe stellar structure and stellar evolution. Last year Boesgaard was awarded the 2019 Henry Norris Russell Lectureship, the societys top award, bestowed each year on the basis of a lifetime of eminence in astronomical research.

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Thousands of astronomers are gathering in Honolulu as TMT discord looms - Honolulu Star-Advertiser

Hubble Team Produces 30th Anniversary Calendar for 2020 | Astronomy – Sci-News.com

In September 2019, the Hubble team announced a social media initiative to celebrate three decades of success in discoveries with the NASA/ESA Hubble Space Telescope. The campaign showcased 30 hidden gems from the Hubble image archive. The 12 images that received the most likes were compiled to produce a special 30th Anniversary Calendar for 2020 (.pdf file, high-resolution print-ready .pdf file).

The cover page of the Hubbles Hidden Gems 2020 Calendar. Image credit: NASA / ESA / Hubble.

The images featured in the Hubbles Hidden Gems 2020 Calendar are described below:

Cover: the calendars cover features NGC 3256, a distorted galaxy located some 131 million light-years away in the constellation of Vela; the galaxy is approximately the same size as our own Milky Way Galaxy and belongs to the Hydra-Centaurus Supercluster complex; it is the relic of a collision between two spiral galaxies, estimated to have occurred 500 million years ago.

January: this picture is the result of the Ultraviolet Coverage of the Hubble Ultra Deep Field project; it contains approximately 10,000 distant galaxies.

February: this colorful image shows a small section of the Veil Nebula, one of the best-known supernova remnants; also known as NGC 6960, the Cirrus Nebula and the Filamentary Nebula, this object spans approximately 110 light-years and lies in the constellation Cygnus, about 2,100 light-years away.

March: this Hubble picture shows IRAS 14568-6304, a young star that is cloaked in a haze of golden gas and dust.

April: this image shows Trumpler 14, one of the largest gatherings of hot, massive and bright stars in our Milky Way Galaxy.

May: this snapshot features the fine detail and exceptionally perfect spiral structure of NGC 634, a spiral galaxy located 250 million light-years away in the constellation of Triangulum.

June: this composite image shows Sh 2-106, a compact star forming region in the constellation of Cygnus, which combines two images taken in infrared light and one that is tuned to a specific wavelength of visible light emitted by excited hydrogen gas.

July: this image shows Saturn and six of its 82 known moons: Dione, Enceladus, Tethys, Janus, Epimetheus, and Mimas.

August: this Hubble image shows NGC 5189, a planetary nebula located in the constellation Musca, some 3,000 light-years away; the intricate structure of the stellar eruption looks like a giant and brightly colored ribbon in space.

September: this colorful and star-studded view of our Milky Way Galaxy was captured in 2016 when Hubble pointed its cameras towards the constellation of Sagittarius.

October: in January 2002, a moderately dim star called V838 Monocerotis suddenly became 600,000 times more luminous than our Sun; a Hubble snapshot shows remarkable details in the shells of dust that were lit up during the titanic stellar eruption.

November: in 2011, Hubble captured a stunning close-up shot of part of the Tarantula Nebula; this is a star-forming region rich in ionized hydrogen gas in the Large Magellanic Cloud.

December: in 2002, Hubble revealed a rainbow of colors in IC 4406, a planetary nebula located 2,000 light-years away near the western border of the constellation Lupus; like many other planetary nebulae, IC 4406 exhibits a high degree of symmetry; the nebulas left and right halves are nearly mirror images of each other.

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This article is based on text provided by the European Space Agency.

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Hubble Team Produces 30th Anniversary Calendar for 2020 | Astronomy - Sci-News.com

Astronomy Before the Telescope set – The Greater New Milford Spectrum

Published 12:00am EST, Friday, January 3, 2020

The John J. McCarthy Observatory in New Milford will present its next Second Saturday Stars program, Thycho at Uraniborg: Astronomy Before the Telescope, Jan. 11.

The program will run from 7 to 9 p.m. at the observatory located behind New Milford High School on Route 7 South.

Tycho Brahe was the worlds foremost astronomer just before Galileo first turned the telescope on the night sky.

It was Tychos accurate data that Kepler used to formulate his three Laws of Planetary Motion.

He as a well-educated Danish nobleman who was given his own island by the King of Denmark to use for his observatory.

Tycho led one of the most colorful lives in history.

The program will address his early life, why he wore a prosthetic nose, what happened to his pet elk, how his good manners killed him, and what has happened to him after he died.

The design and construction of his observatory and home will also be discussed as well as their reconstruction.

His instruments and observations and some of his other work will also be presented.

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Astronomy Before the Telescope set - The Greater New Milford Spectrum

Astronomy VLOG: What the 2020s Mean for Space Travel – WAVY.com

The 2010s were an important decade for astronomy, NASA and the private industry. During this past decade, we discovered Pluto for the first time, the Space Shuttle launched for the final time and the long time Mars rovers went silent.

This is the decade when I became more and more interested in backyard astronomy, looking up through a telescope, checking out the planets, seeing my first rocket launches from Kennedy Space Center and Wallops Island Flight Facility, this is why I am creating astronomy videos, to share my love of astronomy! Before we get into why I think this decade was so important, lets recap what we have seen happen in these past 10 years.

The last Space Shuttle Launch was on July 8, 2011. Check out these Highlights of the mission launch.

This mission was the final of the Shuttle program, the first launch was way back in 1981.

Who would have thought, just 7 years later, from the same launch pad we would be watching this

On Feb 8th, 2018, SpaceX Launched its first Falcon Heavy rocket from Pad 39A in Cape Canaveral Florida. Launching Starman and Elon Musks original roadster on an orbit further away from the sun than Mars!

Of course, both side boosters landing on Live TV and streaming for the first time, was an incredible moment to see which I believe ignited a new era in Space in the United States and the rest of the world. While there have been landings before from SpaceX on a Drone ship, seeing two side boosters land, at the same time, was incredible. And on top of that, we were treated with incredible views of Earth.

The future of space exploration is in the hands of the private industry, whether it takes us to nearby asteroids for mining precious metals or it helps us build a colony on Mars, the Private industry like SpaceX, Blue Origin, Rocket Lab and others will take us there. In the past few weeks, Boeing tested an unmanned rocket for sending American Astronauts from American soil to the Space Station, SpaceX has a launch soon. Smaller companies like Rocket Lab have recently opened a launch Pad in Wallops Island, Virginia for launches in 2020 to allow companies to send satellites to Earths orbit. These are all things not possible just 5 to 10 years ago.

Jeff Edmondson

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Astronomy VLOG: What the 2020s Mean for Space Travel - WAVY.com

The Steady State: When Astronomers Tried to Overthrow the Big Bang – Discover Magazine

It all started with a Big Bang. Or maybe it didnt. In the mid-20th century, most physicists were split on how the universe began or if it even had a beginning at all. Today, scientists agree that the Big Bang theory best describes the birth of our universe nearly 14 billion years ago. The idea now has a lot of observational evidence, but in the 1940s and 50s it was still widely debated. The Big Bang theory roused the public and religious realms perhaps even more than the scientific community, which had previously accepted an idea called the steady state model. It was not only a scientific controversy, it also included some broader aspects, ideological and religious aspects. And that was one reason why it was so publicly controversial, says Helge Kragh, a science historian and professor emeritus at the Niels Bohr Institute. The steady state theory was, especially in England, often associated with atheism, and the Big Bang theory with Christian theism.If the universe had a creation point, then it probably had a creator, the thinking went.

Read More: What Came Before the Big Bang?

Humans have always held ideas about how the universe originated. But it wasnt until advances in the 20th century, including Albert Einsteins theories of relativity, that astronomers could really form educated ideas about how the universe formed.

Alexander Friedmann, a Russian physicist, was the first to realize that applying the rules of relativity across large scales described a universe that changed over time. With a mathematical approach, he showed the universe could have started small before expanding over enormous distances and, in some cases, eventually collapsing back in on itself.

Observations carried out by Lowell Observatorys V.M. Slipher and, later, Edwin Hubble, showed that the universe was in fact expanding. And this helped confirm these initial ideas of the Big Bang. Two years later, the Belgian physicist Georges Lematre published a paper describing how the expanding universe had started as a tiny, hot, dense speck, which he called the primeval atom. Ordained as a Catholic priest, Lematre reported the finding as a happy coincidence of cosmology and theology in an early draft of the paper, though the comment was removed for the final publication of the paper.

Two decades later, George Gamow would develop theories on the fallout of a hot-birthed universe namely, how it would create neutrons and protons and published a popular book on the subject. It even caught the eye of Pope Pius XII, who was taken by the parallels between the scripture of Genesis and the scientific theory.

Unlike the church, Einstein wasnt initially happy with the idea of a changing universe, preferring one invariable on large scales. British astronomer Fred Hoyle wasnt happy, either. Along with two other scientists, he developed a counter-theory the steady state model. The steady state model suggested that the universe had no beginning and had always been expanding. To explain why the universe looks identical in all directions, it proposed tiny traces of matter, too small to be experimentally measured, were continually being created.

This model initially garnered support of around half of the scientific community albeit one that was very small at the time and became the Big Bang theorys biggest rival.

This [debate between theories] was not in the mainstream of physics research, says David Kaiser, science historian and physics professor at MIT. Basically no one paid attention or very little attention, even among professional physicists and astronomers.

But as evidence started gathering, that would change.

Observations of distant ultra-bright galaxies in the 1950s suggested the universe was changing, and measurements of the helium content in the universe didnt match the steady state models predictions. In 1964, the monumental discovery of the cosmic microwave background radiation direct evidence of a young, hot universe would deal the final deathblow to the steady state model.

It really seems to suggest the universe had very different conditions in early times than today, Kaiser says. And that was just not what the steady state model suggests.

In an ironic twist, Hoyle used the term Big Bang in an attempt to dismiss the theory in a BBC interview. Though his own theory would be largely lost to history, the irreverent name would stick.

To his death, Hoyle would never submit to the Big Bang theory. A small subset of cosmologists still work on resurrecting a steady state model; but, on the whole, the community overwhelmingly supports the Big Bang theory.

There are a couple of other puzzles, so cosmologists don't think we're done, but theyre now kind of patching or filling in some holes to the original Big Bang models certainly not replacing it, Kaiser says.

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The Steady State: When Astronomers Tried to Overthrow the Big Bang - Discover Magazine

What is the asteroid belt? | Space – EarthSky

Here is the inner part of our solar system, from the sun to the 5th planet, Jupiter. In this illustration, the asteroid belt is the white donut-shaped cloud. Image via Wikimedia Commons.

Meet the asteroid belt, a place in our solar system where small bodies mostly rocky and some metallic orbit the sun. These little worlds are also sometimes called minor planets. They move mostly between the orbits of the fourth planet Mars and fifth planet Jupiter. Astronomers once thought they were all that was left of a rocky planet, long ago torn apart by Jupiters gravity. Now, most astronomers now think the asteroid belt is just rubble that Jupiters gravity prevented from ever coalescing into a planet. Thus the asterids are likely simply leftovers from the ordinary processes that created our solar system, 4.6 billion years ago.

Their name, asteroid, means starlike. They got this name because in the early 1800s, when the first asteroids were discovered astronomers thought they looked like stars. And yet their movement in front of the star background, caused by their nearness to us, showed them to be something other than stars.

Measurements of the amount of material in the asteroid belt suggest it contains about enough material combined together to form a body smaller than Earths moon.

Comprising an estimated one to two million asteroids more than half a mile (about a km) across, plus untold millions of smaller ones, the asteroid belt contains objects which vary wildly in size. The smallest are probably no bigger than pebbles. The biggest object in the asteroid belt was also the first one to be discovered, in the year 1801. It is 1 Ceres, which measures some 587 miles (945 km). Ceres is now classified as a dwarf planet, by the way, by the International Astronomical Union.

EarthSky 2020 lunar calendars are available! Nearly sold out. Order now!

This orthographic projection shows the largest body in the asteroid belt 1 Ceres, discovered in 1801 now categorized as a dwarf planet by the International Astronomical Union. Ceres is one of several main-belt objects visited by spacecraft. This composite image is from the Dawn spacecraft, still the only earthly spacecraft to have orbited first one body in our solar system (Vesta, 2011 to 2012), then gone on to orbit a second (Ceres, arrived 2015). See the 2 bright spots in Occator Crater? They spawned speculation about alien life on Ceres, but turned out to be salt deposits. This image is made from views Dawn took during its low-altitude mapping orbit, at about 240 miles (385 km) above the surface. Image via NASA.

Outer space is vast. And thus, despite there being many millions (possibly billions) of objects in the asteroid belt, the average distance between them is 600,000 miles (about a million km). This means that spacecraft can fly through the asteroid belt without colliding with any asteroids, although, obviously, a chance collision can never be ruled out completely. The asteroid belt is certainly nothing like the densely-packed asteroid fields depicted in fantasies like Star Wars and its ilk.

Standing on any asteroid in the belt, you would likely be unable to see any other asteroids, because of their distance.

The asteroid belt lies between 2.2 and 3.2 astronomical units (AU) from our sun. One AU is the distance between the Earth and sun. So the width of the asteroid belt is roughly 1 AU, or 92 million miles (150 million km).

Its thickness is similarly about 1 AU thick.

Heres asteroid 4 Vesta discovered in 1807 the 2nd-biggest asteroid after Ceres. The Dawn spacecraft orbited Vesta from July 2011 to September 2012. A towering mountain at this asteroids south pole more than twice the height of Mount Everest is visible at the bottom of the image. The set of three craters known as the snowman can be seen at the top left. Image via NASA.

The asteroid belt is often referred to as the main belt to distinguish it from other, smaller groups of asteroids in the solar system such as the Lagrangians (for example, Trojan asteroids orbiting in Jupiters orbit around the sun) and Centaurs in the outer solar system.

What was thought to be a homogeneous belt is now known to be slightly more complicated. There are different and distinct zones within the main belt asteroids, especially at its peripheries, where astronomers now recognize the Hungaria group at the inner edge and the Cybele asteroids at the outer. Toward the middle of the belt there is the highly-inclined Phocaea family.

In addition, astronomers have established that the age of asteroids in the main belt also varies. Theyve now classified several asteroid groupings by their age including the Karin family, a group of about 90 main-belt asteroids that share an orbit and are thought to have come from a single object an estimated 5.7 million years ago. And there is the Veritas family, from an estimated 8.3 million years ago. A very recent group is the Datura family, dating from just 530,000 years ago from a collision.

Read on Wikipedia about asteroid families.

Read on Wikipedia about asteroids that have been visited by spacecraft

In order to be round, a body in space has to have enough internal mass to have strong-enough gravity to have pulled itself into the shape of a ball. Most asteroids dont accomplish this, and thus they come in all sorts of shapes. Here is asteroid 433 Eros discovered in 1898 now famous as the 1st asteroid ever to be orbited by a spacecraft, NEAR Shoemaker, in 1998. This object is considered a main-belt asteroid: although its orbit crosses that of Mars, it doesnt quite reach that of Earth. Yet its also considered a near-Earth asteroid a subject for another day! Image via NASA.

Bottom line: The asteroid belt is a region of our solar system between the orbits of Mars and Jupiter in which many small bodies orbit our sun.

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What is the asteroid belt? | Space - EarthSky

We Have Absolutely No Idea Whats Out There Astronomers 2019 Views on Extraterrestrial Life (Weekend Featu – The Daily Galaxy –Great Discoveries…

From dark-matter life to billion-year old technological civilizations: In 2019, several leading astrophysicists from NASA to Harvard and Columbia universities have publicly announced their view that aliens are not science fiction: that advanced and ancient technological civilizations may exist but be beyond our comprehension or ability to detect. As early as the NASA Contact Conference in 2002, which focused on serious speculation about advanced extraterrestrial life, an attendee loudly interrupted the keynote speech with the observation that We have absolutely no idea what is out there!

In 2019, Harvard astronomers Avi Loeb wrote in his blog that aliens are not science fiction: I dont see extraterrestrials as more speculative than dark matter or extra dimensions. I think its the other way around.

Law of Large Numbers

Enter Silvano P. Colombano at NASAs Ames Research Center: Our form of life and intelligence may just be a tiny first step in a continuing evolution that may well produce forms of intelligence that are far superior to ours and no longer based on carbon machinery. Exoplanet discoveries made by the Kepler Mission (image above) have identified planetary system as old as 10.4 billion years (Kepler-10) and 11.2 billion (Kepler-444) providing a solid foundation for Columbanos speculations.

On average, every star in the Milky Way has two planets orbiting it. According to NASA, one-fifth of those stars have a planet that could be conducive to life as we imagine it. That translates into 50 billion potentially habitable planets just in the Milky Way one of two trillion galaxies in the observable universe.

If youre going to say that theres no chance were going to find any life elsewhere, you must think theres something really miraculous about Earth, says Seth Shostak at the SETI Institute in Mountain View, California. And thats a suspicious point of view, that were just miraculously better than all the other planets.

Eye of Heaven Thoughts of Chinas Astronomers on Advanced Extraterrestrial Life

Considering that the age of our solar system is about 4.5 billion years, earth-like planets could exist that are six billion years older than our own. Considering further that technological development in our civilization started only about 10,000 years ago and has seen the rise of science only in the past 500 years, Columbano observes that we might difficulty in predicting technological evolution even for the next thousand years, let alone six million times that amount.

Our form of life and intelligence, says Columbano, may just be a tiny first step in a continuing evolution that may well produce forms of intelligence that are far superior to ours and no longer based on carbon machinery. After a mere 50 years of computer evolution the human species is already talking about super-intelligence and we are quickly becoming symbiotic with computer power.

In other words, technological civilizations may exist but be beyond our comprehension or ability to detect, says Colombano who proposes that we may have missed signals when it comes to looking for UFOs. While it is still reasonable and conservative to assume that life is most likely to have originated in conditions similar to ours, the vast time differences in potential evolution renders the likelihood of matching technologies very slim, underscoring the obstacles to a quick discovery of signs of an advanced civilization in the Milky Way.

Spinning Like a Hypersonic Top US Navy Pilots Reported Strange, Unknown Objects

Visitors from the Dark Sector?

If you dropped in on a bunch of Paleolithic farmers with your iPhone and a pair of sneakers, says Columbia University astrophysicist, Caleb Scharf in Is Physical Law an Alien Intelligence? pointing out that Arthur C. Clarke suggested that any sufficiently advanced technology is going to be indistinguishable from magic, youd undoubtedly seem pretty magical. But the contrast is only middling: The farmers would still recognize you as basically like them, and before long theyd be taking selfies. But what if life has moved so far on that it doesnt just appear magical, but appears like physics?

Dark Energy New Exotic Matter or ET Force Field?

Scharf makes an even more exquisite leap, suggesting that dark matter may be hiding life. That its could contain real complexity, and perhaps it is where all technologically advanced life ends up or where most life has always been. What better way to escape the nasty vagaries of supernova and gamma-ray bursts than to adopt a form that is immune to electromagnetic radiation?

Mind-Bending Hyper-Advanced ET May Be What We Perceive to Be Physics

But not resting on his speculative laurels, Scharfs beautifully not-politically correct mind does a double-twist swan dive off the high board and suggests that perhaps the behavior of normal cosmic matter that we attribute to dark matter is brought on by something else altogether: a living state that manipulates luminous matter for its own purposes. Consider that at present we have neither identified the dark-matter particles nor come up with a compelling alternative to our laws of physics that would account for the behavior of galaxies and clusters of galaxies. Would an explanation in terms of life be any less plausible than a failure of established laws?

Visitors from the Milky Way?

Its possible that the Milky Way is partially settled, or intermittently so; maybe explorers visited us in the past, but we dont remember, and they died out, says Jonathan Carroll-Nellenback, an astronomer at the University of Rochester and his collaborators in a 2019 study that suggests it wouldnt take as long as thought for a space-faring civilization to planet-hop across the galaxy, because the orbits of stars can help distribute life, offering a new solution to the Fermi paradox. The solar system may well be amid other settled systems; its just been unvisited for millions of years.

Life in Infinite Space

If space is truly infinite, observes Dan Hooper, head of the Theoretical Astrophysics Group at the Fermi National Accelerator Laboratory, in At the Edge of Time, the implications are staggering. Within an infinite expanse of space, it would be hard to see any reason why there would not be an infinite number of galaxies, stars, and planets, and even an infinite number of intelligent or conscious beings, scattered throughout this limitless volume. That is the thing about infinity: it takes things that are otherwise very unlikely and makes them all inevitable.

The Daily Galaxy, Max Goldberg, via NASA New Assumptions to Guide SETI Research, New York Times and Nautil.us

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We Have Absolutely No Idea Whats Out There Astronomers 2019 Views on Extraterrestrial Life (Weekend Featu - The Daily Galaxy --Great Discoveries...

Wanda Diaz Merced is a blind astronomer who hears the science of the stars – Boing Boing

Wanda Diaz Merced is an astronomer at the International Astronomical Union (IAU) Office for Astronomy Outreach in Mitaka, Japan. Diaz Merced is blind and uses a technique to transform data from astronomical surveys into sounds for analysis. Over at Nature, Elizabeth Gibney interviewed Merced about how "converting astronomical data into sound could bring discoveries that conventional techniques miss." From Nature:

Sonification has been around for a long time. In 1933, for example, US physicist Karl Jansky reported detecting the first radio waves from space, as an audible hiss in his antenna. But at some point, visualization came to dominate the way we interpret astrophysical data. When I was an intern at NASA in 2005, my mentor, Robert Candey, wanted me to create a prototype data analysis tool that would familiarize blind people with space-physics data. So we developed software that could map astronomical data into sound its pitch, rhythm and volume. Then, in my 2013 PhD dissertation at the University of Glasgow, UK, I proved that it is useful....

Can you describe a real-world example?

There are many. Sonification can help us to study the habitability of an exoplanet, by understanding how much high-energy cosmic and solar rays interact with its magnetic field or atmosphere. Such interactions cause fluctuations of electromagnetic emission from that star system that vary in a way that relates to frequency . BBut because astronomers usually separate out different frequency components into many graphs, this is easy to miss. With sonification, we can listen to all the different frequencies together and pick out the signal from the noise.

Anne Innis Dagg was the first female biologist to study giraffes; while all the men who preceded her had observed firsthand that male giraffes are super queer (their primary form of play is a game dubbed "penis fencing," which is exactly what it sounds like), only Dagg was willing to write it down and publish []

In the Galapagos Islands, a shoreside crane toppled over while loading a shipping container onto a barge, capsizing the boat and causing a terrible oil spill of hundreds of gallons of diesel fuel. It was Charles Darwins 1835 studies of the Galapagos Islandss biodiversity that sparked his theory of evolution by natural selection. From ABC []

Photographer Eric Brummel created this magnificent time-lapse video of the Milky Way in which the sky is stabilized so you can experience the Earths rotation. He captured the footage at Fonts Point, Anza-Borrego Desert State Park, California. From Universe Today: Eric created this time-lapse by using a star-tracker with his camera. A star-tracker rotates the []

When most of us think of IT, we picture towering stacks of servers and intense walls of code. And while, yes, servers and code both have their place in any IT pros day-to-day, theyre not nearly as scary as we make them out to beat least not when you have the right training under your []

Before you type word one on a resume, make sure youve got the basics covered. And, for a myriad of jobs in nearly any field, Microsoft Office skills are absolutely essential. Got the software but dont know where to start? This Ultimate Microsoft Office Certificate Mastery Bundle not only gets you up to speed on []

Bare minimum: To make a career as a programmer, you need to know a little about a lot. There are so many languages suited to so many different tasks, its hard to know where to start. If youre truly just starting, its hard to find a better curriculum than in the Ultimate Web Coding for []

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Wanda Diaz Merced is a blind astronomer who hears the science of the stars - Boing Boing

The future is sci-fi: How Ghost in the Shell, Deus Ex Human Revolution foreshadowed humanity 2.0 – Firstpost

As we embark on a new decade, how do visions of the 2020s imagined in books likeDo Androids Dream of Electric Sheep?, films likeSoylent Green, or even manga likeGhost in the Shellmatch up against our reality? In this series, we look at seven pop culture artefacts from the past that foretold the future, providing a prophetic glimpse of the decade were now entering.

Words by Prahlad Srihari | Art by Trisha Bose and Sharath Ravishankar | Concept by Rohini Nair and Harsh Pareek

***

We already live in a world where bionic eye implants have made it possible to restore partial sight for visually impaired people. In fact, augmentations to Second Sight's Argus II may enable future users to even see in infra-red, like the Predator. Ossur's implanted myoelectric sensors allow amputees to control their bionic limbs with their minds. Meanwhile, scientists in North Carolina are hard at work trying to build a future where 3D printers can churn out customised kidneys, livers and other vital organs for those in need.

Even if science fiction has had a headstart over science, the latter is catching up. We're not far away from the transhumanist futures of Ghost in the Shell, Deus Ex: Human Revolution or Robocop. Taking cues from these imaginative works, science hopes to aid and accelerate our evolution from human to post-human through genetic modifications, ironing out our limitations and pushing our limits. But as always, sci-fi has repeatedly warned us against the often unnatural nature of science the importance of knowing when to tinker with technology to aid human progress and when to let nature take its course.

Masamune Shirow's manga Ghost in the Shell offers some vital lessons on transhumanism. Our story begins in 2029 at a time when it is all too common for humans to enhance themselves by replacing their organs with cybernetic parts. Our protagonist, Major Motoko Kusanagi, is a cybernetically enhanced officer of an elite cyber-crime-fighting unit called Section 9. Our plot follows the hunt for an elusive cyber-criminal, called the Puppet Master, a formidable AI who can take up residence in any cyborg body, take over their minds and essentially reprogramme them to do his bidding.

Masamune Shirow's manga Ghost in the Shell offers some vital lessons on transhumanism. Illustration by Sharath Ravishankar for Firstpost

So, Motoko has a crisis of identity when she begins to question the authenticity of her thoughts, her memories and the very nature of her being. If she is a human-machine hybrid, is her identity defined by her human thoughts or are they just exabytes of stored data? If she has no memories of her past human existence and her mind can be manipulated, then what makes her human? If Philip K Dick suggested empathy to be the defining factor of humanity, Shirow suggests it is the human soul (what he calls the ghost) that separates man from machine. But a hybrid made of human cells and a cybernetic body (the shell) brings with it its own unbridgeable dualism, as surmised by Motoko. "I suspect I am not who I think I am. Maybe I died a long time ago and somebody took my brain and stuck it in this body. Maybe there never was a real me in the first place, and I'm completely synthetic," she wonders, before questioning, "What if a cyber brain could possibly generate its own ghost, create a soul all by itself? And if it did, just what would be the importance of being human then?"

(Note: Those averse to reading manga should watch the animated film, not the 2017 live-action film featuring Scarlett Johansson, which revels in cyberpunk spectacle rather than the murky waters of obscurity in Shirow's poetic reflections.)

The blurring of these lines between man and machine reaches its climax when Motoko's ghost merges with the Puppet Master to evolve into a new entity, favouring an immaterial existence free of physical boundaries (like Samantha and her fellow AIs in Her). Instead of trying to put Motoko in distinct human or AI camps, Shirow studies the implications of transhumanism in the intermediary phase between the two. He thus foreshadows the emergence of the posthuman or humanity 2.0.

The video game, Deus Ex: Human Revolution, ventures further into a transhuman future, with one foot in a utopia, and the other in a dystopia. Its cyberpunk future of 2027 is a world where "augmentations" are what separates the upper classes from the lower. Like in Yukito Kishiro's Alita: Battle Angel, they have become so common they're like tattoos or piercings. After a terrorist attack leaves security guard Adam Jensen critically injured, his life is saved thanks to these "augmentations" that turn him into a Robocop. Stronger, faster, and smarter than before, he begins a pursuit of the terrorists, only to uncover a larger conspiracy involving radical supporters and opponents of transhumanism.

It is easy to see why transhumanism has its fair share of supporters and opponents. On the one hand, it represents the next stage in our evolution as cybernetic implants could extend our lifespan, enhance our physical and mental capacities, and help us shape ourselves according to our needs, our desires, or our environment. On the other, any extension, enhancement or reshaping beyond the natural barriers will make life less miraculous or spontaneous. So, rather than curing death, technology should be used to make life worth living.

However, in this quest to improve the human condition through technology, we should not forget what makes us human. Dick's right: It's our empathy. But it is also our ability to introspect, wonder and speculate. As long as these abilities are inherently linked to the human soul, it does not matter what shell it is, the ghost of humanity will forever be preserved in it.

Also read Class structures and dehumanisation of the workforce, as foretold by Metropolis (1927)

Read our 'Decade in Review' series here.

Find latest and upcoming tech gadgets online on Tech2 Gadgets. Get technology news, gadgets reviews & ratings. Popular gadgets including laptop, tablet and mobile specifications, features, prices, comparison.

Updated Date: Jan 05, 2020 01:05:35 IST

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The future is sci-fi: How Ghost in the Shell, Deus Ex Human Revolution foreshadowed humanity 2.0 - Firstpost

What Is Plaque Psoriasis? Get the Facts – Otezla

*Certain restrictions apply. *Certain restrictions apply; eligibility not based on income.

Otezla (apremilast) is a prescription medicine approved for the treatment of patients with moderate to severe plaque psoriasis for whom phototherapy or systemic therapy is appropriate.

Otezla is a prescription medicine approved for the treatment of adult patients with active psoriatic arthritis.

Otezla is a prescription medicine approved for the treatment of adult patients with oral ulcers associated with Behets Disease.

You must not take Otezla if you are allergic to apremilast or to any of the ingredients in Otezla.

Otezla can cause severe diarrhea, nausea, and vomiting, especially within the first few weeks of treatment. Use in elderly patients and the use of certain medications with Otezla appears to increase the risk of having diarrhea, nausea, or vomiting. Tell your doctor if any of these conditions occur.

Otezla is associated with an increase in depression. In clinical studies, some patients reported depression, or suicidal behavior while taking Otezla. Some patients stopped taking Otezla due to depression. Before starting Otezla, tell your doctor if you have had feelings of depression, or suicidal thoughts or behavior. Be sure to tell your doctor if any of these symptoms or other mood changes develop or worsen during treatment with Otezla.

Some patients taking Otezla lost body weight. Your doctor should monitor your weight regularly. If unexplained or significant weight loss occurs, your doctor will decide if you should continue taking Otezla.

Some medicines may make Otezla less effective, and should not be taken with Otezla. Tell your doctor about all the medicines you take, including prescription and nonprescription medicines.

Side effects of Otezla include diarrhea, nausea, vomiting, upper respiratory tract infection, runny nose, sneezing, or congestion, abdominal pain, tension headache, and headache. These are not all the possible side effects with Otezla. Ask your doctor about other potential side effects. Tell your doctor about any side effect that bothers you or does not go away.

Tell your doctor if you are pregnant, planning to become pregnant or planning to breastfeed. Otezla has not been studied in pregnant women or in women who are breastfeeding.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit http://www.fda.gov/medwatch, or call 1-800-332-1088.

Please click here for Full Prescribing Information.

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What Is Plaque Psoriasis? Get the Facts - Otezla

Psoriasis Guide: Causes, Symptoms and Treatment Options

Medically reviewed by Drugs.com. Last updated on May 13, 2019.

Psoriasis is a chronic skin disorder that causes scaling and inflammation.

Psoriasis may develop as a result of an abnormality in the body's immune system. The immune system normally fights infection and allergic reactions.

Psoriasis probably has a genetic component. Nearly half of patients have family members with psoriasis.

Certain medications may trigger psoriasis. Other medications seem to make psoriasis worse in people who have the disease.

Psoriasis causes skin scaling and inflammation. It may or may not cause itching. There are several types of psoriasis:

Plaque psoriasis. In plaque psoriasis, there are rounded or oval patches (plaques) of affected skin. These are usually red and covered with a thick silvery scale. The plaques often occur on the elbows, knees, scalp or near the buttocks. They may also appear on the trunk, arms and legs.

Inverse psoriasis. Inverse psoriasis is a plaque type of psoriasis that tends to affect skin creases. Creases in the underarm, groin, buttocks, genital areas or under the breast are particularly affected. The red patches may be moist rather than scaling.

Pustular psoriasis. The skin patches are studded with pimples or pustules.

Guttate psoriasis. In guttate psoriasis, many small, red, scaly patches develop suddenly and simultaneously. Guttate psoriasis often occurs in a young person who has recently had strep throat or a viral upper respiratory infection.

About half of people with skin symptoms of psoriasis also have abnormal fingernails. Their nails are often thick and have small indentations, called pitting.

A type of arthritis called psoriatic arthritis affects some people with psoriasis. Psoriatic arthritis may occur before skin changes appear.

Your doctor will look for the typical skin and nail changes of this disorder. He or she can frequently diagnose psoriasis based on your physical examination.

When skin symptoms are not typical of the disorder, your doctor may recommend a skin biopsy. In a biopsy, a small sample of skin is removed and examined in a laboratory. The biopsy can confirm the diagnosis and rule out other possible skin disorders.

Psoriasis is a long-term disorder. However, symptoms may come and go.

There is no way to prevent psoriasis.

Treatment for psoriasis varies depending on the:

Treatments for psoriasis include:

Topical treatments. These are treatments applied directly to the skin.

Daily skin care with emollients for lubrication. These include petroleum jelly or unscented moisturizers.

Corticosteroid creams, lotions and ointments. These may be prescribed in medium and high-strength forms for stubborn plaques on the hands, feet, arms, legs and trunk. They may be prescribed in low-strength forms for areas of delicate skin such as the face.

Calcipotriol (Dovonex) slows production of skin scales.

Tazarotene (Tazorac) is a synthetic vitamin A derivative.

Coal tar

Salicylic acid to remove scales

Phototherapy. Extensive or widespread psoriasis may be treated with light. Phototherapy uses ultraviolet B or ultraviolet A, alone or in combination with coal tar.

A treatment called PUVA combines ultraviolet A light treatment with an oral medication that improves the effectiveness of the light treatment.

Laser treatment also can be used. It allows treatment to be more focused so that higher amounts of UV light can be used.

Vitamin A derivatives. These are used to treat moderate to severe psoriasis involving large areas of the body. These treatments are very powerful. Some have the potential to cause severe side effects. It's essential to understand the risks and be monitored closely.

Immunosuppressants. These drugs work by suppressing the immune system. They are used to treat moderate to severe psoriasis involving large areas of the body.

Antineoplastic agents. More rarely, these drugs (which are most often used to treat cancer cells) may be prescribed for severe psoriasis.

Biologic therapies. Biologics are newer agents used for psoriasis that has not responded to other treatments. Psoriasis is caused, in part, by substances made by the immune system that cause inflammation. Biologics act against these substances. Biologic treatments tend to be quite expensive.

If you are unsure whether you have psoriasis, contact your doctor. Also contact your doctor if you have psoriasis and are not doing well with over-the-counter treatment.

For most patients, psoriasis is a long-term condition.

There is no cure. But there are many effective treatments.

In some patients, doctors may switch treatments every 12 to 24 months. This prevents the treatments from losing their effectiveness and decreases the risk of side effects.

National Psoriasis Foundation6600 SW 92nd Ave.Suite 300Portland, OR 97223-7195Phone: 503-244-7404Toll-Free: 1-800-723-9166Fax: 503-245-0626http://www.psoriasis.org/

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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Psoriasis Guide: Causes, Symptoms and Treatment Options

Psoriasis – NHS

Psoriasis is a skin condition that causes red, flaky, crusty patches of skin covered with silvery scales.

These patches normally appear on your elbows, knees, scalp and lower back, but can appear anywhere on your body.

Most people are only affected with small patches. In some cases, the patches can be itchy or sore.

Psoriasis affects around 2% of people in the UK. It can start at any age, but most often develops in adults under 35 years old, and affects men and women equally.

The severity of psoriasis varies greatly from person to person. For some it's just a minor irritation, but for others it can majorly affect their quality of life.

Psoriasis is a long-lasting (chronic) disease that usually involves periods when you have no symptoms ormild symptoms, followed by periods when symptoms are more severe.

People with psoriasis have anincreased production of skin cells.

Skin cells are normallymade and replaced every 3 to 4 weeks, but in psoriasis this process only takes about 3 to 7 days.

The resulting build-up of skin cells is what creates the patches associated with psoriasis.

Although the process is not fully understood, it's thoughtto be related to a problem with the immune system.

The immune systemis your body's defence against disease and infection, but it attacks healthy skin cells by mistake in people with psoriasis.

Psoriasis can run in families,although the exact role genetics plays in causing psoriasis is unclear.

Many people's psoriasis symptoms start or become worse because of a certain event, known as a trigger.

Possible triggers of psoriasis includean injury to your skin, throat infections and using certain medicines.

The condition is not contagious, so it cannot be spread from person to person.

Find out more about the causes of psoriasis

A GP canoften diagnose psoriasis based on the appearance of your skin.

In rare cases, a small sample of skin called a biopsy will be sent to the laboratory for examination under a microscope.

This determines the exact type of psoriasis and rules out other skin disorders, such as seborrhoeic dermatitis, lichen planus, lichen simplex and pityriasis rosea.

You may be referred to a specialist in diagnosing and treating skin conditions (dermatologist) if your doctor is uncertain about your diagnosis, or if your condition is severe.

If your doctor suspects you have psoriatic arthritis, which is sometimes a complication of psoriasis, you may be referred to a doctor who specialises in arthritis (rheumatologist).

You may have blood tests to rule out other conditions, such as rheumatoid arthritis, and X-rays of the affected joints may be taken.

There's no cure for psoriasis, but a range of treatments can improve symptoms and the appearance of skin patches.

In most cases, the first treatment used will be a topical treatment, such as vitamin D analogues or topical corticosteroids. Topical treatments are creams and ointments applied to the skin.

If these are not effective, or your condition is more severe, a treatment called phototherapy may be used. Phototherapy involves exposing your skin to certain types of ultraviolet light.

In severe cases, where the above treatments are ineffective, systemic treatments may be used. These are oral or injected medicines that work throughout the whole body.

Although psoriasis is just a minor irritation for some people, it can have a significant impact on quality of life for those more severely affected.

For example,some people with psoriasis have low self-esteem because of the effect the condition has on their appearance.

It's also quitecommonto developtenderness, pain and swelling in the joints and connective tissue. This is known as psoriatic arthritis.

Speak to a GP or your healthcare team if you have psoriasis and youhave any concerns about your physical and mental wellbeing. Theycan offer advice and further treatment if necessary.

There are also support groups for people with psoriasis, such as The Psoriasis Association, where you can speak to other people with the condition.

Find out more about living with psoriasis

Media last reviewed: 5 November 2018Media review due: 5 November 2021

Page last reviewed: 9 May 2018Next review due: 9 May 2021

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Psoriasis - NHS

Psoriasis | DermNet NZ

Author: Hon A/Prof Amanda Oakley, Dermatologist, Hamilton, New Zealand, 1997. Revised and updated, August 2014.

Psoriasis is a chronic inflammatory skin condition characterised by clearly defined, red and scaly plaques (thickened skin). It is classified into several subtypes.

Psoriasis affects 24% of males and females. It can start at any age including childhood, with peaks of onset at 1525 years and 5060 years. It tends to persist lifelong, fluctuating in extent and severity. It is particularly common in Caucasians but may affect people of any race. About one-third of patients with psoriasis have family members with psoriasis.

Psoriasis is multifactorial. It is classified as an immune-mediated inflammatory disease (IMID).

Genetic factors are important. An individual's genetic profile influences their type of psoriasis and its response to treatment.

Genome-wide association studies report that the histocompatibility complex HLA-C*06:02 (previously known as HLA-Cw6) is associated with early-onset psoriasis and guttate psoriasis. This major histocompatibility complex is not associated with arthritis, nail dystrophy or late-onset psoriasis.

Theories about the causes of psoriasis need to explain why the skin is red, inflamed and thickened. It is clear that immune factors and inflammatory cytokines (messenger proteins) such as IL1 and TNF are responsible for the clinical features of psoriasis. Current theories are exploring the TH17 pathway and release of the cytokine IL17A.

Psoriasis usually presents with symmetrically distributed, red, scaly plaques with well-defined edges. The scale is typically silvery white, except in skin folds where the plaques often appear shiny and they may have a moist peeling surface. The most common sites are scalp, elbows and knees, but any part of the skin can be involved. The plaques are usually very persistent without treatment.

Itch is mostly mild but may be severe in some patients, leading to scratching and lichenification (thickened leathery skin with increased skin markings). Painful skin cracks or fissures may occur.

When psoriatic plaques clear up, they may leave brown or pale marks that can be expected to fade over several months.

Certain features of psoriasis can be categorised to help determine appropriate investigations and treatment pathways. Overlap may occur.

Typical patterns of psoriasis.

Post-streptococcal acute guttate psoriasis

Small plaque psoriasis

Chronic plaque psoriasis

Unstable plaque psoriasis

Flexural psoriasis

Scalp psoriasis

Sebopsoriasis

Palmoplantar psoriasis

Nail psoriasis

Erythrodermic psoriasis (rare)

Psoriasis

Generalised pustulosis and localised palmoplantar pustulosis are no longer classified within the psoriasis spectrum.

Patients with psoriasis are more likely than other people to have other health conditions listed here.

Psoriasis is diagnosed by its clinical features. If necessary, diagnosis is supported by typical skin biopsy findings.

Medical assessment entails a careful history, examination, questioning about the effect of psoriasis on daily life, and evaluation of comorbid factors.

Validated tools used to evaluate psoriasis include:

The severity of psoriasis is classified as mild in 60% of patients, moderate in 30% and severe in 10%.

Evaluation of comorbidities may include:

Patients with psoriasis should ensure they are well informed about their skin condition and its treatment. There are benefits from not smoking, avoiding excessive alcohol and maintaining optimal weight.

Mild psoriasis is generally treated with topical agents alone. Which treatment is selected may depend on body site, extent and severity of psoriasis.

Most psoriasis centres offer phototherapy with ultraviolet (UV) radiation, often in combination with topical or systemic agents. Types of phototherapy include

Moderate to severe psoriasis warrants treatment with a systemic agent and/or phototherapy. The most common treatments are:

Other medicines occasionally used for psoriasis include:

Systemic corticosteroids are best avoided due to a risk of severe withdrawal flare of psoriasis and adverse effects.

Biologics or targeted therapies are reserved for conventional treatment-resistant severe psoriasis, mainly because of expense, as side effects compare favourably with other systemic agents. These include:

Many other monoclonal antibodies are under investigation in the treatment of psoriasis.

Oral agents working through the protein kinase pathways are also under investigation. Several JAK (Janus kinase) inhibitors are under investigation for psoriasis, including tofacitinib and the TYK2 (tyrosine kinase 2) inhibitorBMS-986165; both are in Phase III trials for psoriasis.

See the rest here:

Psoriasis | DermNet NZ

Psoriasis Types, Images, Treatments

Plaque Psoriasis

Plaque psoriasis is the most common type of psoriasis and it gets its name from the plaques that build up on the skin. There tend to be well-defined patches of red raised skin that can appear on any area of the skin, but the knees, elbows, scalp, trunk, and nails are the most common locations. There is also a flaky, white build up on top of the plaques, called scales. Possible plaque psoriasis symptoms include skin pain, itching, and cracking.

There are plenty of over-the-counter products that are effective in the treatment of plaque psoriasis. 1% hydrocortisone cream is a topical steroid that can suppress mild disease and preparations containing tar are effective in treating plaque psoriasis.

Scalp psoriasis is a common skin disorder that makes raised, reddish, often scaly patches. Scalp psoriasis can affect your whole scalp, or just pop up as one patch. This type of psoriasis can even spread to the forehead, the back of the neck, or behind the ears. Scalp psoriasis symptoms may include only slight, fine scaling. Moderate to severe scalp psoriasis symptoms may include dandruff-like flaking, dry scalp, and hair loss. Scalp psoriasis does not directly cause hair loss, but stress and excess scratching or picking of the scalp may result in hair loss.

Scalp psoriasis can be treated with medicated shampoos, creams, gels, oils, ointments, and soaps. Salicylic acid and coal tar are two medications in over-the-counter products that help treat scalp psoriasis. Steroid injections and phototherapy may help treat mild scalp psoriasis. Biologics are the latest class of medications that can also help treat severe scalp psoriasis.

Guttate psoriasis looks like small, pink dots or drops on the skin. The word guttate is from the Latin word gutta, meaning drop. There tends to be fine scales with guttate psoriasis that is finer than the scales in plaque psoriasis. Guttate psoriasis is typically triggered by streptococcal (strep throat) and the outbreak will usually occur two to three weeks after having strep throat.

Guttate psoriasis tends to go away after a few weeks without treatment. Moisturizers can be used to soften the skin. If there is a history of psoriasis, a doctor may take a throat culture to determine if strep throat is present. If the throat culture shows that streptococcal is present, a doctor may prescribe antibiotics.

Many patients with psoriasis have abnormal nails. Psoriatic nails often have a horizontal white or yellow margin at the tip of the nail called distal onycholysis because the nail is lifted away from the skin. There can often be small pits in the nail plate, and the nail is often yellow and crumbly.

The same treatment for skin psoriasis is beneficial for nail psoriasis. However, since nails grow slow, it may take a while for improvements to be evident. Nail psoriasis can be treated with phototherapy, systemic therapy (medications that spread throughout the body), and steroids (cream or injection). If medications do not improve the condition of nail psoriasis, a doctor may surgically remove the nail.

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Psoriasis Types, Images, Treatments

Psoriasis – Harvard Health

Published: January, 2015

Psoriasis begins when certain areas of skin produce new skin cells much more rapidly than normal, causing a thickening and scaling of the skin.

The scaly, red patches of skin caused by psoriasis affect men and women of all ages. They can erupt anywhere on the body, clear up for months at a time, and then reappear.

Although the exact causes of psoriasis are not known, the immune system is involved and heredity may play a role; at least 1 of 3 people with psoriasis has an immediate relative with the disease.

Psoriasis can be triggered by a strep throat infection, heavy alcohol consumption, stress, some medicines (such as beta blockers and lithium), injury to the skin, and infection with the human immunodeficiency virus (HIV).

Psoriasis appears as reddish patches of skin covered with silvery scales; they may or may not cause discomfort.

There are several types of psoriasis:

Among people with psoriasis, 1 in 7 develop psoriatic arthritis, an autoimmune disease that causes inflammation of the joints.

The typical skin and nail changes of this disorder are often all that are needed to make a diagnosis. When skin symptoms aren't typical, your doctor may recommend that you have a skin biopsy, in which a small sample of skin is removed and examined in a laboratory. The biopsy can confirm the diagnosis and rule out other possible skin disorders.

Psoriasis is a chronic condition for which there is no cure. However, there are many treatments available to help keep it from getting worse, or flaring up. Treatment depends on the type, its location, and how widespread it is.

These are treatments applied directly to the skin. They include:

Extensive or widespread psoriasis may be treated with light (phototherapy). A treatment called PUVA combines ultraviolet A light treatment with an oral medication that improves the effectiveness of the light treatment.

Laser treatment also can be used. It allows treatment to be more focused so higher amounts of UV light can be used.

These are used to treat moderate to severe psoriasis involving large areas of the body. These treatments are very powerful. Some have the potential to cause severe side effects, so it is essential to understand the risks and be monitored closely.

These drugs work by suppressing the immune system. They are used to treat moderate to severe psoriasis involving large areas of the body.

Anticancer drugs like methotrexate are sometimes used to treat severe psoriasis.

Biologic drugs, or biologics, target specific parts of the immune system. They block the action of a specific type of immune cell called a T cell, or block proteins in the immune system, such as tumor necrosis factor-alpha (TNF-alpha) or inflammatory proteins known as interleukin-12 and interleukin-23. These cells and proteins all play a major role in developing psoriasis and psoriatic arthritis.

Biologics are given by injection or intravenous infusion. They include

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Psoriasis - Harvard Health

Novartis, Merck and Allergan Join Those Raising U.S. Drug Prices for 2020 – The New York Times

NEW YORK Novartis AG, Merck & Co Inc and Allergan Plc were among companies that raised U.S. prices on more than 100 prescription medicines on Friday, bringing the tally to 445 drugs that will cost more in 2020, according to data analyzed by healthcare research firm 3 Axis Advisors.

That is above the average of 404 drug price increases in the first three days of January over the past five years. Nearly all of the price increases are below 10%, with the median price increase around 5%, according to 3 Axis.

Swiss drugmaker Novartis raised prices on nearly 30 drugs including psoriasis treatment Cosentyx and multiple sclerosis medicine Gilenya, 3 Axis said. Most of those increases were in the range of 5.5% to 7%.

Novartis said that while it is raising the list prices of about 7 percent of its U.S. medicines, after discounts and rebates to commercial and government payers it expects a net price decrease of 2.5% in 2020.

U.S. drugmaker Merck raised prices on about 15 drugs, including diabetes medicines Januvia and Janumet, mostly around 5%, 3 Axis said.

The list price of its top-selling cancer immunotherapy Keytruda, expected to tally more than $13 billion in 2019 sales, was pushed up 1.5%.

Merck in a statement said the increases are consistent with its commitment to not raise U.S. net prices by more than inflation annually.

Ireland-based Allergan, which is being acquired by rival AbbVie Inc for more than $60 billion, said it was raising prices on 25 drugs by 5% and on two more medicines by 2-3%. But with higher rebates and discounts, it said, net pricing would be flat to lower in 2020.

Reuters previously reported that Pfizer Inc, Bristol-Myers Squibb Co and AbbVie were among drugmakers that had raised prices on more than 330 drugs to start the year.

Soaring healthcare costs for U.S. consumers, and prescription drug prices in particular, are expected to again be a central issue in the 2020 presidential campaign for both parties. President Donald Trump, a Republican who made bringing them down a core pledge of his 2016 campaign, is running for re-election in 2020.

Under pressure from politicians and patients, many makers of branded drugs have pledged to keep annual U.S. price increases below 10% a year.

Prescription drug prices are higher in the United States than most developed countries where governments directly or indirectly control the costs, making it the world's most lucrative market for manufacturers.

Drugmakers often negotiate rebates or discounts on their list prices in exchange for favorable treatment from insurers and other healthcare payers. As a result, insurers and covered patients rarely pay the full list price of a drug.

(Reporting by Michael Erman; Editing by Bill Berkrot)

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Novartis, Merck and Allergan Join Those Raising U.S. Drug Prices for 2020 - The New York Times

Psoriasis: Practice Essentials, Background, Pathophysiology

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Psoriasis: Practice Essentials, Background, Pathophysiology