Monthly Archives: May 2017

Bitcoin $3,000? Ex-fugitive cybersecurity legend sees ‘enormous … – MarketWatch

Posted: May 26, 2017 at 3:42 am

Watch for No. 6 today.

The sixth win in a row for the S&P 500, that is. Not even OPEC disappointments seem able to derail U.S. stocks, with early gains for HP helping the mood. Oil has been on a wild ride so far, check out our chart of the day for that.

That other march higher the rally for bitcoin BTCUSD, -2.12% and other cryptocurrencies is also still going strong. A single bitcoin is fetching more than $2,700. Some out there seem to have no doubt that $3,000 is not far off:

Our call of the day comes from John McAfee, the colorful founder of the antivirus software company, former fugitive and now CEO of MGT Capital Investments MGTI, +48.57% .

Bitcoin has enormous momentum, McAfee says. And MGT is stepping up its bitcoin mining.

Todays announcement is transformational for MGT. Not only does it vastly improve our financial profile, but it positions us as the only public company in the space, says McAfee, of the former video gaming company turned cybersecurity firm.

Others say there is plenty of reason to believe a crash could be coming for the currency that still baffles many. But McAfees enthusiasm comes alongside growing respect for bitcoin investors right now.

IGs Chris Weston has this to say: I genuinely cant wait to see young tech heads driving down Collins Street in a new Aston, because they had the stones to be able to hold their exposure through what has been an exponential move without ever having taken profit. (The Aussie is referring to a major Melbourne thoroughfare).

Bitcoin is the mother of all FOMO (Fear of Missing Out) trades, Weston writes. Perhaps the fact I am putting so much focus on bitcoin suggests a top has been seen and I am the taxi driver contrarian indicator. We shall see, but our flows in bitcoin have been huge, says the big brokerages strategist.

And check out the advice that Reddit bitcoin community member TotalMelancholy gave a fellow trader who made a bad move recently: The key to trading altcoins is to set targets of 10-15% profit after buying into an altcoin, instead of the X00% people try to chase. 10% is very easy during a bull market like this, and its fairly low risk. It doesn't sound like much, but consistent +10% trades add up very quickly! Diversify, rinse and repeat and youre pretty much sitting on a money tree.

Read: Heres why bitcoin may never go mainstream

The Dow DJIA, +0.34% , S&P SPX, +0.44% and Nasdaq COMP, +0.69% are all higher at the open. Thats as the dollar DXY, -0.06% is slightly lower and gold GCM7, +0.40% is moving up. Check out our chart of the day to see what oils been up to on OPEC day.

Get the latest action in Market Snapshot.

Tesla TSLA, +2.13% factory workers have suffered injuries at a higher rate than the industry average over the past two years, says a new study by a California nonprofit. And those workers also spent more days away from work due to injuries than the auto industry average.

Read: The many failures of Elon Musk, captured in one giant infographic

HP HPQ, -3.37% is climbing after posting better-than-expected quarterly results.

See: HP boosted by double whammy of PC and printer growth

Best Buy BBY, +21.48% , Dollar Tree DLTR, +0.92% and Hormel HRL, -6.41% all reported.

Facebook FB, +1.28% has reportedly signed deals with BuzzFeed, Vox Media and others to create shows for its video entertainment service, say sources quoted by Fortune.

President Trump is sitting down with EU leaders for the first time on Thursday.

You know its OPEC day when...you get a swan-dive chart like this one.

That roller coaster of a meeting in Vienna has been batting oil prices around, with crude below $51 as the Saudis ruled out deeper output cuts. More to come on that as the meeting is ongoing.

Greg Gianforte just body slammed me and broke my glasses. That was Ben Jacobs, Guardian political reporter who tweeted this out after a scuffle with Montana congressional candidate Greg Gianforte on the eve of a special election. The Republican politician has been charged with misdemeanor assault.

Based on Twitter reaction, no one seemed to be having the time of their lives with ABCs Dirty Dancing remake

The TSA will begin rolling out tighter screening at 10 U.S. airports

Trump may get an earful from U.K. PM Theresa May later over Manchester attack details that showed up in U.S. publications

The president of the Philippines threatens martial law to combat a rise in ISIS

Good news chocolate lovers: Study shows a little each week helps your heart

A moment of silence ends with this Manchester group sing:

Need to Know starts early and is updated until the opening bell, but sign up here to get it delivered once to your email box. Be sure to check the Need to Know item. The emailed version will be sent out at about 7:30 a.m. Eastern.

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Bitcoin $3,000? Ex-fugitive cybersecurity legend sees 'enormous ... - MarketWatch

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Is Bitcoin A Bubble? – Forbes

Posted: at 3:42 am

Is Bitcoin A Bubble?
Forbes
We talked yesterday about run up in bitcoin. The price of bitcoin jumped another 14% today before falling back. As I said yesterday, it looks like Chinese money is finding it's way out of China (despite the capital controls) and finding a home in ...

and more »

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Bitcoin soars: $100 in 2010 is worth $75 million today – The Boston Globe

Posted: at 3:42 am

According to CNBC, the price of a single bitcoin has recently soared to $2,200 from just $0.003 seven years ago.

Bitcoin has received a lot of attention over the past few weeks in the wake of the recent malware attacks that impacted dozens of countries and thousands of businesses. Victims were required to pay a ransom in the digital currency to unlock files that were encrypted by the virus. The question for many business owners is that, given its growing acceptance, is it ready for prime time? Should we accept bitcoin?

Theres no question that its been a good investment, particularly if you bought at the right time. According to a report from CNBC, the price of a single bitcoin has recently soared to $2,200 from just $0.003 seven years ago. We know this because on Monday its fans celebrated the anniversary of Bitcoin Pizza Day, when Laszlo Hanyecz, a programmer, spent 10,000 bitcoin for two Papa Johns pizzas. Times have definitely changed.

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So whats driving the run up in price? CNBCs tech correspondent Arjun Kharpal cites factors such as new legislation in Japan that allows retailers to accept the cryptocurrency (40 percent of all bitcoin trade is in Japan), the resolution of a dispute in the digital community that couldve created competing currencies and the general market turmoil brought on by global economic uncertainty.

President Donald Trumps stated desire to weaken the dollar and make American goods more attractive overseas may also be contributing. Not only that, but according to a report on CNN.com, a few high ranking members of his administration, like budget director Mick Mulvaney and vice president Mike Pences chief economist Mark Calabria, have both supported the cryptocurrency.

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The currency is not backed by any government and cant be physically held in your hands. Its just out there - in the ether - and protected by blockchain, a digital recordkeeping system thats so secure many banks are considering a move toward adopting it as the backbone of their payment systems.

Some small businesses, particularly online retailers, are considering accepting bitcoin as another means of payment. Most investors agree that, although the currencys meteoric rise is very attractive, its also an extremely volatile and risky investment. Once you start accepting bitcoin in your company youll have to ask yourself what business youre really in: your business, or the currency business.

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Look up: International Space Station more visible through Saturday – WRAL.com

Posted: at 3:42 am

By Tony Rice

The International Space Station (ISS) will be a little more visible through Saturday morning.

Several times each year, the ISS enters a high-beta period. The Beta Angle, measured between the sun and Earths orbit, reached a high of 72 degrees this morning.

Astronauts usually experience a sunrise and sunset on each 90-minute orbit of the Earth. During periods of high-beta angle, the space station is in constant sunlight as it orbits above the suns terminator, the line between night and day.

Think of it this way: Picture a track with a bright light in the middle. Now picture an object tied to the end of a rope being swung by a runner circling that track. The light is the sun, the runner is Earth, the track is the orbital plane of Earth, and the object orbiting the runner is the ISS. If the runner swings the rope horizontally, with the plane of track/Earths orbit, thats a low beta angle. The object sees some periods of darkness as it swings into the runners shadow. If the runner swings the rope vertically, perpendicular to the plane of track/Earths orbit, thats a high-beta angle. The object is always exposed to light.

Beta angle is an important part of ISS flight controllers planning. While all that sunlight is great for generating power with the stations massive solar arrays, it presents challenges in keeping the stations components cool. Controllers must keep the station oriented to provide its own shade on key segments.

Orbiting at just over 250 miles in altitude, ISS is visible to anyone on the ground within a 100-mile wide circle. The closer you are to the center of that circle, the higher in the sky the ISS will reach and the longer it will be visible in the sky. Central North Carolina is at the center of that circle Thursday just after 9 p.m.

Generally, the ISS is visible here on Earth only during the hour or two before or after sunset or sunrise. During high-beta periods, that constant sunlight extends its visibility, even overnight. That provides an unusual number of opportunities to see the station pass overhead as clouds move out later tonight.

The station will be visible:

Thursday

9:10 p.m. from the SW for over 6 minutes 10:50 p.m. from the NW for 3 minutes (very low pass)

Friday

3:43 a.m. from the NNW for nearly 6 minutes 5:17 a.m. from the WNW for 5 minutes 9:55 p.m. from the W for 5 minutes

Saturday

4:28 a.m. from the WSW for 3 minutes 9:03 p.m. from the WSW for 6 minutes 9:49 p.m. from the NW for 2 minutes

Tonights ground track of the station takes it west of Pinehurst and Carthage, directly over Jordan Lake, directly over the campuses of Cisco and Biogen in RTP, Falls Creek, until it leaves North Carolina directly over the state line at Lake Gaston.

The station will travel from the South Carolina border to the Virginia border in just 41 seconds.

Tony Rice is a volunteer in the NASA/JPL Solar System Ambassador program and software engineer at Cisco Systems. You can follow him on Twitter @rtphokie.

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International Space Station Fast Facts – KTVQ Billings News

Posted: at 3:42 am

CNN Library

(CNN) -- Here's a look at the International Space Station (ISS), a spacecraft built by a partnership of 16 nations.

The 16 nations are the United States, Canada, Japan, Russia, Brazil, Belgium, Denmark, France, Germany, Italy, the Netherlands, Norway, Spain, Sweden, Switzerland and the United Kingdom.

Information on ISS crews and expeditions can be found here.

Statistics: The ISS includes three main modules connected by nodes: the US Laboratory Module Destiny, the European Research Laboratory Columbus, and the Japanese Experiment Module Kibo (Hope). Each was launched separately and connected in space by astronauts.

Mass: 925,335 pounds (419,725 kilograms)

Habitable Volume: 13,696 cubic feet (388 cubic meters)

Solar Array Length: 239.4 feet (73 meters)

As of May 2017, there have been 201 spacewalks conducted for station assembly and maintenance, totaling just over 1,250 hours.

As of May 2016, the space station has orbited the Earth 100,000 times.

Timeline: November 1998 - A Russian Proton rocket places the first piece, the Zarya module, in orbit.

December 1998 - The space shuttle Endeavour crew, on the STS-88 mission, attaches the Unity module to Zarya initiating the first ISS assembly sequence.

June 1999 - The space shuttle Discovery crew, on mission STS-96, supplies two modules with tools and cranes.

July 2000 - Zvezda, the fifth flight, docks with the ISS to become the third major component of the station.

November 2000 - The first permanent crew, Expedition One, arrives at the station.

November/December 2000 - The space shuttle Endeavour crew, on mission STS-97, installs the first set of U.S. solar arrays on the station and visits Expedition One.

February 2001 - Mission STS-98 delivers the US Destiny Laboratory Module.

March 2001 - STS-102 delivers Expedition Two to the station and brings Expedition One home. The crew also brings Leonardo, the first Multi-Purpose Logistics Module, to the station.

September 16, 2001 - The Russian Docking Compartment, Pirs, arrives at the ISS.

June 2002 - STS-111 delivers the Expedition Five crew and brings the Expedition Four crew home. The crew also brings the Mobile Base System to the orbital outpost.

December 2002 - STS-113 delivers the Expedition Six crew and the P1 Truss.

May 3, 2003 - Expedition Six crew return to Earth on Soyuz TMA-1. Crew members Bowersox and Pettit are the first American astronauts ever to land in a Soyuz spacecraft.

July 29, 2003 - Marks the 1,000th consecutive day of people living and working aboard the International Space Station (this is a record for the Space Station, but not for space).

August 10, 2003 - Russian Cosmonaut Yuri Malenchenko marries his fiance Ekaterina Dmitriev from space. The bride and groom exchange vows over a hotline set up for the event. Dmitriev stands next to a life-sized picture of Malenchenko.

April 22, 2004 - The second of four gyroscopes that stabilize the orbiting outpost of the ISS fails. NASA officials say this does not pose an immediate threat to the crew. An extra spacewalk will have to be conducted to the fix the electrical component box thought to be at fault.

November 2, 2005 - Fifth anniversary of continuous human presence in space on the International Space Station.

February 3, 2006 - SuitSat-1, an unmanned space suit containing a radio transmitter, batteries, and internal sensors to monitor battery power and temperature, is deployed as a part of an International Space Station spacewalk. The suit is supposed to transmit recorded messages in six languages to school children and amateur radio operators for several days before re-entering Earth's atmosphere and burning up, but it goes silent shortly after its deployment.

March 31, 2006 - Arriving with the crew of Expedition Thirteen is Marcos Pontes, the first Brazilian astronaut. Staying eight days, Pontes conducts scientific experiments before returning to Earth with the crew of Expedition Twelve.

July 7, 2006 - The arrival of Thomas Reiter of Germany via the Space Shuttle Discovery returns the station's long-duration crew to three for the first time since May 2003 and the Columbia shuttle disaster. Reiter is the first non-US, and non-Russian long-duration station crewmember, and he remains onboard during the first part of Expedition Fourteen.

September 9, 2006 - Space Shuttle Atlantis docks with the International Space Station, delivering the P3/P4 truss and its solar wings before undocking September 21 and returning to Earth.

September 20, 2006 - Arriving with the crew of Expedition Fourteen is Anousheh Ansari, an American businesswoman. She spends about eight days conducting experiments and blogging about her experiences before returning to Earth with two of the three members of Expedition Thirteen.

December 2006 - Arrival of Flight Engineer Sunita Williams via space shuttle mission STS-116. Williams replaces Thomas Reiter, who returns to Earth with the crew of STS-116.

April 7, 2007 - Charles Simonyi becomes the fifth space tourist when he accompanies the Expedition Fifteen crew to the ISS. He spends 12 days aboard the space station before returning to Earth with the crew of Expedition Fourteen.

June 10, 2007 - Space Shuttle Atlantis docks with the ISS to install a new segment and solar panel on the space station and retrieve astronaut Sunita Williams, who has been at the space station since December. Williams is replaced by Flight Engineer Clayton Anderson, who will return to earth aboard Discovery on Mission STS-120.

June 15, 2007 - Four days after ISS's computers crash, two Russian cosmonauts bring them back online. The computers control the station's orientation as well as oxygen production. The crew used Atlantis' thrusters to help maintain the station's position while its computers were down.

October 25, 2007 - Space Shuttle Discovery docks with ISS. In the days while docked with the ISS, Discovery crew delivers and connects Harmony to the ISS, a living and working compartment that will also serve as the docking port for Japanese and European Union laboratories. Discovery and ISS crew also move an ISS solar array to prepare for future ISS expansion, planning a special spacewalk to repair damage to the solar array that occurred during its unfurling.

November 14, 2007 - ISS crew move the Harmony node from its temporary location on the Unity node to its permanent location attached to Destiny.

February 9, 2008 - Space Shuttle Atlantis arrives. Atlantis crew delivers the European-made Columbus laboratory, a 23-foot long module that will be home to a variety of science experiments. Atlantis remains docked with the ISS for just under nine days.

March 9, 2008 - "Jules Verne," the first of a series of European space vessels designed to deliver supplies to the International Space Station, launches from the Ariane Launch Complex in Kourou, French Guiana. The vessels, called Automated Transfer Vehicles (ATV), are propelled into space atop an Ariane 5 rocket, and are designed to dock with the ISS with no human assistance. The Jules Verne will wait to dock with the ISS until after Space Shuttle Endeavour's March mission is completed.

March 12, 2008 - Space Shuttle Endeavour docks with the ISS.

March 24, 2008 - Endeavour detaches from the ISS. While docked, crew members make five spacewalks to deliver and assemble the Dextre Robotics System, deliver and attach the Kibo logistics module, attach science experiments to the exterior of the ISS, and perform other inspection and maintenance tasks.

April 3, 2008 - The unmanned European cargo ship Jules Verne successfully docks with the ISS. Able to carry more than three times the volume of the Russian-built Progress resupply vehicles, the Jules Verne contains fuel, water, oxygen, and other supplies. The automated docking sequence is monitored by flight controllers at the European Space Agency in Toulouse, France, as well as at NASA's Mission Control in Houston, and Russia's control center near Moscow.

April 10, 2008 - Two members of Expedition 17 crew arrive at the ISS via a Russian Soyuz spacecraft. Travelling with them is Yi So-yeon, a space flight participant and South Korea's first astronaut. Yi later returns to Earth aboard an older Soyuz spacecraft along with members of the Expedition 16 crew; while in space, she will conduct a number of experiments aboard the ISS.

June 2, 2008 - Space Shuttle Discovery docks with the ISS. Discovery is carrying Japan's Kibo lab, a replacement pump for the station's toilet, and astronaut Gregory Chamitoff, who is replacing Garrett Reisman as part of the station's crew.

June 11, 2008 - Discovery undocks with the ISS after its crew successfully delivers and installs the Japanese-built Kibo lab, delivers parts to repair the ISS's malfunctioning toilet, collects debris samples from the station's faulty solar power wing, and retrieves an inspection boom left behind during a previous shuttle mission. Station crewmember Garrett Reisman departs with Discovery; he is replaced on the station by Gregory Chamitoff.

October 12, 2008 - The Soyuz TMA-13 capsule carrying two Americans - flight commander Michael Fincke and American computer game millionaire Richard Garriott, and Russian flight engineer Yuri Lonchakov - lifts off from Kazakhstan. It docks with the ISS on October 14.

March 12, 2009 - Orbital debris from a prior space shuttle mission forces the crew of Expedition 18 to retreat to its Soyuz capsule temporarily.

August 24, 2011 - Russian emergency officials report that an unmanned Russian cargo craft, the Progress-M12M, that was to deliver 3.85 tons of food and supplies to the ISS crashed in a remote area of Siberia. Future missions could be delayed until an investigation pinpoints the cause of the crash involving a Soyuz rocket, the same kind of booster that powers the flights of crew members to the space station.

May 19, 2012 - SpaceX's launch of the Falcon 9 rocket, the first private spacecraft bound for the International Space Station, is aborted a half a second before liftoff. SpaceX engineers trace the problem to a faulty rocket engine valve.

May 22, 2012 - The unmanned SpaceX Falcon 9 rocket launches at 3:44 a.m. ET from Cape Canaveral Air Force Station in Florida. The rocket carries the Dragon spacecraft, which is filled with food, supplies and science experiments and bound for the International Space Station.

May 25, 2012 - The unmanned SpaceX Dragon spacecraft connects to the International Space Station, the first private spacecraft to successfully reach an orbiting space station.

October 7, 2012 - SpaceX's Falcon 9 rocket with its Dragon capsule carrying 1,000 pounds of supplies bound for the International Space Station launches at 8:35 p.m. ET from Florida's Cape Canaveral. It is the first of a dozen NASA-contracted flights to resupply the International Space Station, at a total cost of $1.6 billion.

February 19, 2013 - NASA loses communication with the ISS during a software upgrade. Communication is restored several hours later.

May 9, 2013 - The crew discovers that the International Space Station is leaking ammonia. The crew performs a spacewalk and corrects the leak two days later.

November 9, 2013 - Russian cosmonauts perform the first ever spacewalk of the Olympic Torch ahead of the 2014 Sochi Winter Games.

December 11, 2013 - A pump on one of the station's two external cooling loops shuts down after hitting a temperature limit, according to NASA. The malfunctioning loop had been producing too much ammonia, possibly the result of a malfunctioning valve.

December 24, 2013 - Astronauts complete a repair job to replace the problematic pump. Their spacewalk lasts seven and a half hours, and is the second ever spacewalk on a Christmas Eve. The first was in 1999 for a Hubble Repair Mission.

March 10, 2014 - After five and a half months aboard the ISS, Expedition 38 astronauts return to earth aboard the Soyuz TMA-10M spacecraft.

September 16, 2014 - NASA announces that Boeing and Space X have been awarded contracts to build vehicles that will shuttle astronauts to and from the space station.

October 28, 2014 - An unmanned Orbital Sciences rocket contracted by NASA bursts into flames seconds after liftoff, destroying supplies meant for the International Space Station.

December 15, 2015 - Astronaut Tim Peake is the first British European Space Agency astronaut to arrive at the International Space Station.

March 2, 2016 - NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko land in the Kazakhstan desert at 10:26 a.m. local time after a nearly yearlong mission on the International Space Station.

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NASA to Air Launch of Next International Space Station Resupply Mission – PR Newswire (press release)

Posted: at 3:41 am

WASHINGTON, May 25, 2017 /PRNewswire-USNewswire/ -- NASA commercial cargo provider SpaceX is targeting its eleventh commercial resupply services mission to theInternational Space Stationfor 5:55 p.m. EDT Thursday, June 1. Launch coverage will begin on NASA Television and the agency's website at 5:15 p.m., followed by the post-launch news conference at 7:30 p.m.

The SpaceX Dragon spacecraft will liftoff on the company's Falcon 9 rocket from Launch Complex 39A at NASA's Kennedy Space Center in Florida, carryingalmost 6,000 pounds of science research, crew supplies and hardware to the orbiting laboratory in support of Expedition 52 and 53 crew members. The unpressurized trunk of the spacecraft also will transport solar panels, tools for Earth-observation and equipment to study neutron stars.

About 10 minutes after launch, Dragon will reach its preliminary orbit. It then will deploy its solar arrays and begin a carefully choreographed series of thruster firings to reach the space station. When it arrives to the space station, Expedition 52 Flight Engineers Jack Fischer and Peggy Whitson of NASA will grapple Dragon.

Live coverage of the rendezvous and capture will begin at 8:30 a.m. Sunday, June 4, on NASA TV, with installation coverage set to begin at 11:30 a.m. If the launch does not occur on June 1, the next launch opportunity is 5:07 p.m. Saturday, June 3, with NASA TV coverage starting at 4:30 p.m.

The Dragon spacecraft will remain at the space station until approximately July 2, when it will return to Earth with research and return cargo in a splashdown in the Pacific Ocean, off the coast of Baja California.

Media at Kennedy will have the opportunity to participate in special tours and briefings May 31 and June 1, as well as view the launch. The deadline for media to apply for accreditation for this launch has passed, but for more information about media accreditation, contact Jennifer Horner at 321-867-6598 orjennifer.p.horner@nasa.gov.

This will be the 100th launch, and sixth SpaceX launch, from this pad. Previous launches include 11 Apollo flights, the launch of the unmanned Skylab in 1973, 82 shuttle flights and five SpaceX launches.

For an updated schedule of prelaunch briefings, events and NASA TV coverage, visit:

https://www.nasa.gov/press-release/spacex-crs-11-briefings-and-events

Learn more about the SpaceX CRS-11 mission at:

https://www.nasa.gov/spacex

To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/nasa-to-air-launch-of-next-international-space-station-resupply-mission-300464350.html

SOURCE NASA

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2 US Astronauts Conduct Unplanned, Rapidly Executed Contingency Space Walk on Space Station – Universe Today

Posted: at 3:41 am


Universe Today
2 US Astronauts Conduct Unplanned, Rapidly Executed Contingency Space Walk on Space Station
Universe Today
In the space of just 3 days, a pair of NASA astronauts conducted an unplanned and rapidly executed contingency space walk on the exterior of the space station on Tuesday, May 23 in order to replace a critical computer unit that failed over the weekend.
NASA Space Station On-Orbit Status 22 May 2017 - Astronauts Prepare for Contingency SpacewalkSpace Ref (press release)
Cool Spacewalk, Right? Get Ready for MoreISS Will Need Fixin'WIRED
Spacewalking astronauts pull off urgent station repairsIndex-Journal
CDA News -The Space Reporter
all 36 news articles »

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Thursday Night: Look up too see Space Station – WDSU New Orleans

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Thursday Night: Look up to see Space Station

Humidity makes a big comeback Saturday and Sunday.

Updated: 8:35 PM CDT May 25, 2017

Look up to see the Space Station at 8:07 to 8:13 pm. Sunny skies forecast Friday. Highs upper 80s to near 90. Humidity makes a big comeback Saturday and Sunday. Heat index climbs into upper 90s. Slight rain chance Saturday and 20% chance Sunday. Rain chances go up Monday at Tuesday to a 50% chance. Keep an eye to the sky.

http://www.wdsu.com/weather

WEBVTT LIVE AT NOPD HEADQUARTERS,TRAVERS MACKEL, WDSU NEWS.MARGARET: WE ARE TALKING ABEAUTIFUL DAY TODAY.LOOK OUT AT THE LAKEFRONT.DEAR MEMBER YESTERDAY?-- DO YOU REMEMBER YESTERDAY?NORTHWES WIND, NOW WE HAVE ASOUTHWEST WIND.LOOK AT THIS GORGEOUS PICTUREFROM DAVID MOORE AND HE SAIDGOOD MORNING AND DO YOU KNOWWHAT A GOOD MORNING IT WAS.LOOK AT THESE LOW TEMPERATURES.WE HAD A LOWS IN THE MID-50'S.THE AVERAGE LOW IS ACTUALLY 70.WE HAVE A LOW AT THE AIRPORT OF57.BELOW THAT AVERAGE OF 87, ENJOYIT, TEMPERATURES ARE GOING UPTOMORROW.83, A WEST-SOUTHWEST WIND.IT IS FEELING NICE.LOOK AT THESE TEMPERATURES ALLACROSS THE AREA, LOW-80'S,HAMMOND AND BATON ROUGE AT 84DEGREES.IT IS PRETTY MUCH ASSUME -- MUCHWEST-SOUTHWEST.WE ARE WARMER THAN WE WEREYESTERDAY AT THIS TIME.6:00 HERE, 82 THE LOW-80'S.TONIGHT, YOU CAN GO OUT AGAINAND YOU CAN SEE THE SPACESTATION.CODY SENT THIS IN LAST NIGHTOVER IN BROOKHAVEN.IT IS GOING TO BE A LITTLE BITEARLIER, RIGHT THERE AT 8:07.YOU LOOK TO THE SOUTHWEST BUTTHEN RIGHT WHEN IT IS EAST OFNE ORLEANS, THAT IS WHEN IT ISGOING TO BE AT THE HIGHESTELEVATION SO 8:07 TO 8:13.LOOK OUTSIDE, IT IS REALLY ATREAT.SULA SAID SHE JUST SNEEZED.GRASS POLLEN IS HIGH.WE CAN CHECK OUT WHAT ISHAPPENING, HARDLY ANY CLOUDS.LIVE RIGHT HERE, THAT ISACTUALLY A LATE BREES -- LATEBREES BECAUSE -- LAKE BREEZE.NO RAIN FORECAST TONIGHT.NO RAIN FORECAST FOR YOURFRIDAY.AS YOU GO INTO SATURDAY, THEREIS A SLIGHT CHANCE OF RAIN ANDYOU WILL NOTICE A FEW MORECLOUDS.IN THE MORNING, LOW-60'S TO THEUPPER-60'S FOR YOUR LOWS.UPPER-80'S TO NEAR-90 AND IT ISBECAUSE OF THAT SOUTH WINDS.IT IS GOING TO BE PUMPING IN THEMOISTURE AS WELL.FOR GREEK FEST, FRIDAY,UPPER-80'S TO 90'S.LOOK AT TOMORROW, GORGEOUS.I CANNOT GO TO GREET FESTTOMORROW, I'M GOING TO GUESSSATURDAY OR SUNDAY.IF YOU GO ON SUNDAY AND WHEREYOUR TOGA, YOU GET ENTRY.-- WEAR YOUR TOGA, YOU GET IN

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Elon will likely reveal more details on his Big Mars Colonization Rocket at IAC 2017 Sept 25-29 2017 – Next Big Future

Posted: at 3:41 am

Elon Musk will likely reveal more details about the Interplanetary Transport system on the one year anniversary of the first announcement at the 2016 International Astronautical conference. IAC2017, hosted by the Space Industry Association of Australia (SIAA) will take place in Adelaide, Australia from 25 29 September 2017.

Robert Zubrin, Longtime Mars Colonization advocate, gave a Critique of the SpaceX Interplanetary Transport System.

Zubrin was struck by many good and powerful ideas in the Musk plan. However, Musks plan assembled some of those good ideas in an extremely suboptimal way, making the proposed system impractical. Still, with some corrections, a system using the core concepts Musk laid out could be made attractive not just as an imaginative concept for the colonization of Mars, but as a means of meeting the nearer-at-hand challenge of enabling human expeditions to the planet.

Zubrin explains the conceptual flaws of the new SpaceX plan, showing how they can be corrected to benefit, first, the near-term goal of initiating human exploration of the Red Planet, and then, with a cost-effective base-building and settlement program, the more distant goal of future Mars colonization.

Robert Zubrin, a New Atlantis contributing editor, is president of Pioneer Energy of Lakewood, Colorado, and president of the Mars Society.

Highlights * Have the second stage go only out to the distance of the moon and return to enable 5 payloads to be sent instead of one * Leave the 100 person capsule on Mars and only have a small cabin return to earth * use the refueling in orbit and other optimizations to enable a Falcon Heavy to deliver 40 tons to Mars instead of 12 for exploration missions in 2018, 2020 etc * Reusable first stage makes rocketplanes going anywhere point to point on Earth feasible. Falcon Heavy would have the capacity of a Boeing 737 and could travel in about one hour of time anywhere

There are videos of the Elon Musk presentation and an interview with Zubrin about the Musk plan at the bottom of the article

Spacex Falcon Heavy

Design of the SpaceX Interplanetary Transport System

As described by Musk, the SpaceX ITS would consist of a very large two-stage fully-reusable launch system, powered by methane/oxygen chemical bipropellant. The suborbital first stage would have four times the takeoff thrust of a Saturn V (the huge rocket that sent the Apollo missions to the Moon). The second stage, which reaches orbit, would have the thrust of a single Saturn V. Together, the two stages could deliver a maximum payload of 550 tons to low Earth orbit (LEO), about four times the capacity of the Saturn V. (Note: All of the tons referenced in this article are metric tons.)

At the top of the rocket, the spaceship itself where some hundred passengers reside is inseparable from the second stage. (Contrast this with, for example, NASAs lunar missions, where each part of the system was discarded in turn until just the Command Module carried the Apollo astronauts back to Earth.) Since the second-stage-plus-spaceship will have used its fuel in getting to orbit, it would need to refuel in orbit, filling up with about 1,950 tons of propellant (which means that each launch carrying passengers would require four additional launches to deliver the necessary propellant). Once filled up, the spaceship can head to Mars.

The duration of the journey would of course depend on where Earth and Mars are in their orbits; the shortest one-way trip would be around 80 days, according to Musks presentation, and the longest would be around 150 days. (Musk stated that he thinks the architecture could be improved to reduce the trip to 60 or even 30 days.)

After landing on Mars and discharging its passengers, the ship would be refueled with methane/oxygen bipropellant made on the surface of Mars from Martian water and carbon dioxide, and then flown back to Earth orbit.

Zubrins Problems with the Proposed Spacex System

The SpaceX plan as Musk described it contains nine notable features. If we examine each of these in turn, some of the strengths and weaknesses in the overall system will begin to present themselves.

1. Extremely large size. The proposed SpaceX launch system is four times bigger than a Saturn V rocket. This is a serious problem, because even with the companys impressively low development costs, SpaceX has no prospect of being able to afford the very large investment at least $10 billion required to develop a launch vehicle of this scale.

2. Use of methane/oxygen bipropellant for takeoff from Earth, trans-Mars injection, and direct return to Earth from the Martian surface. These ideas go together, and are very strong. Methane/oxygen is, after hydrogen/oxygen, the highest-performing practical propellant combination, and it is much more compact and storable than hydrogen/oxygen. It is very cheap, and is the easiest propellant to make on Mars. For over a quarter century, I have been a strong advocate of this design approach, making it a central feature of the Mars Direct mission architecture I first laid out in 1990 and described in my book The Case for Mars. However, it should be noted that while the manufacture of methane/oxygen from Martian carbon dioxide and water is certainly feasible, it is not without cost in effort, power, and capital facilities, and so the transportation system should be designed to keep this burden on the Mars base within manageable bounds.

3. The large scale manufacture of methane/oxygen bipropellant on the Martian surface from indigenous materials. Here I offer the same praise and the same note of caution as above. The use of in situ (that is, on-site) Martian resources makes the entire SpaceX plan possible, just as it is a central feature of my Mars Direct plan. But the scale of the entire mission architecture must be balanced with the production capacity that can realistically be established.

4. All flight systems are completely reusable. This is an important goal for minimizing costs, and SpaceX is already making substantial advances toward it by demonstrating the return and reuse of the first stage of its Falcon 9 launch vehicle. However, for a mission component to be considered reusable it doesnt necessarily need to be returned to Earth and launched again. In general, it can make more sense to find other ways to reuse components off Earth that are already in orbit or beyond. This idea is reflected in some parts of the new SpaceX plan such as refilling the second stage in low Earth orbit but, as we shall see, it is ignored elsewhere, at considerable cost to program effectiveness. Furthermore the rate at which systems can be reused must also be considered.

5. Refilling methane/oxygen propellant in the booster second stage in Earth orbit. Here Musk and his colleagues face a technical challenge, since transferring cryogenic fluids in zero gravity has never been done. The problem is that in zero gravity two-phase mixtures float around with gas and liquid mixed and scattered among each other, making it difficult to operate pumps, while the ultra-cold nature of cryogenic fluids precludes the use of flexible bladders to effect the fluid transfer. However, I believe this is a solvable problem and one well worth solving, both for the benefits it offers this mission architecture and for different designs we may see in the future.

6. Use of the second stage to fly all the way to the Martian surface and back. This is a very bad idea. For one thing, it entails sending a 7-million-pound-force thrust engine, which would weigh about 60 tons, and its large and massive accompanying tankage all the way from low Earth orbit to the surface of Mars, and then sending them back, at great cost to mission payload and at great burden to Mars base-propellant production facilities. Furthermore, it means that this very large and expensive piece of capital equipment can be used only once every four years (since the feasible windows for trips to and from Mars occur about every two years).

7. The sending of a large habitat on a roundtrip from Earth to Mars and back. This, too, is a very bad idea, because the habitat will get to be used only one way, once every four years. If we are building a Mars base or colonizing Mars, any large habitat sent to the planets surface should stay there so the colonists can use it for living quarters. Going to great expense to send a habitat to Mars only to return it to Earth empty makes no sense. Mars needs houses.

8. Quick trips to Mars. If we accept the optimistic estimates that Musk offered during his presentation, the SpaceX system would be capable of 115-day (average) one-way trips from Earth to Mars, a somewhat faster journey than other proposed mission architectures. But the speedier trips impose a great cost on payload capability. And they raise the price tag, thereby undermining the architectures professed purpose colonizing Mars since the primary requirement for colonization is to reduce cost sufficiently to make emigration affordable. Lets do some back-of-the-envelope calculations. Following the example of colonial America, lets pick as the affordability criterion the property liquidation of a middle-class household, or seven years pay for a working man (say about $300,000 in todays equivalent terms), a criterion with which Musk roughly concurs. Most middle-class householders would prefer to get to Mars in six months at the cost equivalent to one house instead of getting to Mars in four months at a cost equivalent to three houses. For immigrants, who will spend the rest of their lives on Mars, or even explorers who would spend 2.5 years on a round trip, the advantage of reaching Mars one-way in four months instead of six months is negligible and if shaving off two months would require a reduction in payload, meaning fewer provisions could be brought along, then the faster trip would be downright undesirable. Furthermore, the six-month transit is actually safer, because it is also the trajectory that loops back to Earth exactly two years after departure, so the Earth will be there to meet it. And trajectories involving faster flights to Mars will necessarily loop further out into space if the landing on Mars is aborted, and thus take longer than two years to get back to Earths orbit, making the free-return backup abort trajectory impossible. The claim that the SpaceX plan would be capable of 60-day (let alone 30-day) one-way transits to Mars is not credible.

9. The use of supersonic retropropulsion to achieve landing on Mars. This is a breakthrough concept for landing large payloads, one that SpaceX has demonstrated successfully in landing the first stages of its Falcon 9 on Earth. Its feasibility for Mars has thus been demonstrated in principle. It should be noted, however, that SpaceX is now proposing to scale up the landing propulsion system by about a factor of 50 and employing such a landing techniques adds to the propulsive requirement of the mission, making the (unnecessary) goal of quick trips even harder to achieve.

Improving the SpaceX ITS Plan

Taking the above points into consideration, some corrections for the flaws in the current ITS plan immediately suggest themselves:

A. Instead of hauling the massive second stage of the launch vehicle all the way to Mars, the spacecraft should separate from it just before Earth escape. In this case, instead of flying all the way to Mars and back over 2.5 years, the second stage would fly out only about as far as the Moon, and return to aerobrake into Earth orbit a week after departure. If the refilling process could be done expeditiously, say in a week, it might thus be possible to use the second stage five times every mission opportunity (assuming a launch window of about two months), instead of once every other mission opportunity. This would increase the net use of the second stage propulsion system by a factor of 10, allowing five payloads to be delivered to Mars every opportunity using only one such system, instead of the ten required by the ITS baseline design. Without the giant second stage, the spaceship would then perform the remaining propulsive maneuver to fly to and land on Mars.

B. Instead of sending the very large hundred-person habitat back to Earth after landing it on Mars, it would stay on Mars, where it could be repurposed as a Mars surface habitat something that the settlers would surely find extremely useful. Its modest propulsive stage could be repurposed as a surface-to-surface long-range flight system, or scrapped to provide material to meet other needs of the people living on Mars. If the propulsive system must be sent back to Earth, it should return with only a small cabin for the pilots and such colonists as want to call it quits. Such a procedure would greatly increase the payload capability of the ITS system while reducing its propellant-production burden on the Mars base.

C. As a result of not sending the very large second stage propulsion system to the Martian surface and not sending the large habitat back from the Martian surface, the total payload available to send one-way to Mars is greatly increased while the propellant production requirements on Mars would be greatly reduced.

D. The notion of sacrificing payload to achieve one-way average transit times substantially below six months should be abandoned. However, if the goal of quick trips is retained, then the corrections specified above would make it much more feasible, greatly increasing payload and decreasing trip time compared to what is possible with the original approach.

Changing the plan in the ways described above would greatly improve the performance of the ITS. This is because the ITS in its original form is not designed to achieve the mission of inexpensively sending colonists and payloads to Mars. Rather, it is designed to achieve the science-fiction vision of the giant interplanetary spaceship. This is a fundamental mistake, although the temptation is understandable. (A similar visionary impulse influenced the design of NASAs space shuttle, with significant disadvantage to its performance as an Earth-to-orbit payload delivery system.) The central requirement of human Mars missions is not to create or operate giant spaceships. Rather, it is to send payloads from Earth to Mars capable of supporting groups of people, and then to send back such payloads as are necessary.

To put it another way: The visionary goal might be to create spaceships, but the rational goal is to send payloads.

Alternative Versions of the SpaceX ITS Plan

To get a sense of some of the benefits that would come from making the changes I [Zubrin] outlined above, lets make some estimates. In the table below, I [Zubrin] compare six versions of the ITS plan, half based on the visionary form that Elon Musk sketched out (called the Original or O design in the table) and half incorporating the alterations I [Zubrin] have suggested (the Revised or R designs).

Our starting assumptions: The ship begins the mission in a circular low Earth orbit with an altitude of 350 kilometers and an associated orbital velocity of 7.7 kilometers per second (km/s). Escape velocity for such a ship would be 10.9 km/s, so applying a velocity change (DV) of 3 km/s would still keep it in a highly elliptical orbit bound to the Earth. Adding another 1.2 km/s would give its payload a perigee velocity of 12.1 km/s, sufficient to send it on a six-month trajectory to Mars, with a two-year free-return option to Earth. (In calculating trip times to Mars, we assume average mission opportunities. In practice some would reach Mars sooner, some later, depending on the launch year, but all would maintain the two-year free return.) We assume a further 1.3 km/s to be required for midcourse corrections and landing using supersonic retropropulsion. For direct return to Earth from the Martian surface, we assume a total velocity change of 6.6 km/s to be required. In all cases, an exhaust velocity of 3.74 km/s (that is, a specific impulse of 382 s) for the methane/oxygen propulsion, and a mass of 2 tons of habitat mass per passenger are assumed. A maximum booster second-stage tank capacity of 1,950 tons is assumed, in accordance with the design data in Musks presentation.

Using the improved plan to send 40 tons (3.3 times more) to Mars with Falcon Heavy

Consider what this revised version of the ITS plan would look like in practice, if it were used not for settling Mars but for the nearer-at-hand task of exploring Mars. If a SpaceX Falcon Heavy launch vehicle were used to send payloads directly from Earth, it could land only about 12 tons on Mars. (This is roughly what SpaceX is planning on doing in an unmanned Red Dragon mission as soon as 2018.) While it is possible to design a minimal manned Mars expedition around such a limited payload capability, such mission plans are suboptimal. But if instead, following the ITS concept, the upper stage of the Falcon Heavy booster were refueled in low Earth orbit, it could be used to land as much as 40 tons on Mars, which would suffice for an excellent human exploration mission. Thus, if booster second stages can be refilled in orbit, the size of the launch vehicle required for a small Mars exploration mission could be reduced by about a factor of three.

In all of the ITS variants discussed here, the entire flight hardware set would be fully reusable, enabling low-cost support of a permanent and growing Mars base. However, complete reusability is not a requirement for the initial exploration missions to Mars; it could be phased in as technological abilities improved. Furthermore, while the Falcon Heavy as currently designed uses kerosene/oxygen propulsion in all stages, not methane/oxygen, in the revised ITS plan laid out above only the propulsion system in the trans-Mars ship needs to be methane/oxygen, while both stages of the booster can use any sort of propellant. This makes the problem of refilling the second stage on orbit much simpler, because kerosene is not cryogenic, and thus can be transferred in zero gravity using flexible bladders, while liquid oxygen is paramagnetic, and so can be settled on the pumps side of the tank using magnets.

Dawn of the Spaceplanes

Toward the end of his presentation, Musk briefly suggested that one way to fund the development of the ITS might be to use it as a system for rapid, long-distance, point-to-point travel on Earth. This is actually a very exciting possibility, although I would add the qualifier that such a system would not be the ITS as described, but a scaled-down related system, one adapted to the terrestrial travel application.

For a rocketplane to travel halfway around the world would require a DV of about 7 km/s (6 km/s in physical velocity, and 1 km/s in liftoff gravity and drag losses). Assuming methane/oxygen propellant with an exhaust velocity of 3.4 km/s (it would be lower for a rocketplane than for a space vehicle, because exhaust velocity is reduced by surrounding air), such a vehicle, if designed as a single stage, would need to have a mass ratio of about 8, which means that only 12 percent of its takeoff mass could be solid material, accounting for all structures, while the rest would be propellant. On the other hand, if the rocketplane were boosted toward space by a reusable first stage that accomplished the first 3 km/s of the required DV, the flight vehicle would only need a mass ratio of about 3, allowing 34 percent of it to be structure. This reduction of the propellant-to-structure ratio from 7:1 down to 2:1 is the difference between a feasible system and an infeasible one.

In short, what Musk has done by making reusable first stages a reality is to make rocketplanes possible. But there is no need to wait for 500-ton-to-orbit transports. In fact, his Falcon 9 reusable first stage, which is already in operation, could enable globe-spanning rocketplanes with capacities comparable to the DC-3, while the planned Falcon Heavy (or New Glenn) launch vehicles could make possible rocketplanes with the capacity of a Boeing 737.

Nextbigfuture notes that reusable first stages are now technically functioning but safety and reliability would need to be improved by about 1000 to 10,000 times for point to point manned travel.

SOURCES- Spacex, Zubrin, the New Atlantis, Twitter

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Elon will likely reveal more details on his Big Mars Colonization Rocket at IAC 2017 Sept 25-29 2017 - Next Big Future

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Study Implicates Two Genetic Variants in Bicuspid Aortic Valve Development – Newswise (press release)

Posted: at 3:39 am

Newswise Researchers are working to determine why the aortic valve doesnt form correctly in patients with the most common congenital heart defect: bicuspid aortic valve.

In a new Nature Communications study, the Michigan Medicine-led group found two genetic variants associated with the condition.

Bicuspid aortic valve is moderately heritable, yet experts are still figuring out which part of our DNA code explains why some BAV patients inherit the disease.

Weve completed the first successful genomewide study of bicuspid aortic valve, by studying subjects at U-Ms Frankel Cardiovascular Center, says first author Bo Yang, M.D., Ph.D., a Michigan Medicine cardiac surgeon. We are using state-of-the-art technology of induced stem cell and gene editing to dissect the genomic region we found to be associated with BAV. Its a great collaboration that will accelerate our scientific understanding of this disease.

BAV patients have aortic valves with only two leaflets, rather than three, limiting the valves function as the heart pumps oxygen-rich blood toward the aorta to enrich the body. The condition is associated with various complications, including a narrowed valve (aortic stenosis), a leaky valve (aortic insufficiency or regurgitation), an infection of the valve or an aortic aneurysm.

A great head start

The researchers performed genomewide association scans of 466 BAV cases from the Frankel Cardiovascular Center and 4,660 controls from the Michigan Genomics Initiative, with replication on 1,326 cases and 8,103 controls from collaborators at other leading institutions. They also reprogrammed the matured white blood cells to change them back into immortal cells (stem cells) and changed the genetic code of those cells to study the function of the variants they identified through the genomewide association study.

The team reports two genetic variants, both affecting a key cardiac transcription factor called GATA4, reached or nearly reached genomewide significance in BAV. GATA4 is a protein important to cardiovascular development in the womb, and GATA4 mutations have been associated with other cardiovascular defects.

One of the regions we identify actually changes the protein coded by the gene, and the other likely changes expression levels of GATA4 during valve formation, says senior author Cristen Willer, Ph.D., professor of internal medicine, human genetics and computational medicine and bioinformatics. Because most genetic variants associated with human disease are in the 99 percent of the genome that doesnt code for proteins, this finding gives us a great head start toward understanding the mechanism of how a genetic change outside the protein-coding part of the genome can lead to disease.

Specifically, the authors point to a disruption during the endothelial-mesenchymal transition, which is a critical step in the development of the aortic valve. Willer and Yang say this study, with support from the Frankel CVC and the Bob and Ann Aikens Aortic Program, adds new knowledge about the mechanism of BAV formation. They plan to continue to study the biological effect of both variants associated BAV in cells and animal models.

Collaborators from a variety of institutions provided replication of the result, including Harvard Medical School, the University of Texas, the Montreal Heart Institute, the Karolinska Institute and Icahn School of Medicine at Mount Sinai.

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Study Implicates Two Genetic Variants in Bicuspid Aortic Valve Development - Newswise (press release)

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