NASA Shows Severity Of California #39;s Drought
Extent of Californian drought mapped by NASA #39;s Gravity Recovery and Climate Experiment (GRACE) satellite. SUBSCRIBE! to this channel if you like climate videos. Read our full report on this...
By: reportingclimatescience.com
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NASA Story Stray Cat Strut Remix
By: Brunello Luca
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#39; #39;MORE SHOCKING IMAGES #39; #39; #39;- Christmas comet lovejoy...More NASA bullshit
Question -When is a comet NOT a comet?... Answer-When its a Spaceship!... Serious looking spaceship with lots of aliens ... I mentioned the Gods on my walk...here we begin... MUSIC :http://sound...
By: litereader
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''MORE SHOCKING IMAGES'''- Christmas comet lovejoy...More NASA bullshit - Video
NASA AND ALIENS HOAX
ASTRONOT ED.
By: JUNGLE SURFER
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"NASA Spacecraft Approaching Dwarf Planet Ceres" Roman Goddess
NASA Spacecraft is approaching the dwarf planet Ceres named after a Roman Goddess of Agriculture also on the State Capitols of Missouri and Vermont http://www.paulbegleyprophecy.com also ...
By: Paul Begley
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"NASA Spacecraft Approaching Dwarf Planet Ceres" Roman Goddess - Video
We know the TRUTH about NASA
The National Aeronautics and Space Administration also known as the Brotherhood of LIES they are only showing us the DisneyWORLD version of space and everything else to do with the universe...
By: unenslaved2012
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Nasa kolekcija petardi za 2014/2015 godinu
Kolekcija nije mala a nije ni velika.Like,koment,share and subscribe!
By: ~Braca gejmeri~
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VolcaRock and The Phantoms Guest AMBIENT SPACE jam MS-20 mini NASA Samples
Thanks to Rob for letting me play on this awesome track he created, enjoy the ray gun lol please subscribe to Rob, link below! 🙂 https://www.youtube.com/user/getshotde.
By: The Phantoms Guest Guitar Channel
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VolcaRock and The Phantoms Guest AMBIENT SPACE jam MS-20 mini NASA Samples - Video
Roblox NASA Launch 🙂
The SLS will be taking off at the Cape Canaveral Launch Station in Brevard County! Welcome to follow me at TristanFowlkes22 on Roblox.
By: LightingPenguinsGaming
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NASAs Mars rover Opportunity has been working well into its golden years after nearly 11 years roaming the Red Planet, it has survived more than 40 times past its warranty. But now, this trusty veteran explorer is experiencing some worrisome memory loss.
The long-lived rover has been having some senior moments, according to John Callas, project manager for the Mars Exploration Rover mission (as Opportunity and its defunct twin Spirit are formally known). The episodes of amnesia stem from faulty flash memory the kind of memory in your digital camera that allows your pictures to stay saved even after your device is turned off.
But flash memory doesnt last forever and the seventh, final bank in the flash memory appears to be malfunctioning.
Flash memory has a limited lifetime, Callas said. It only allows so many read-write cycles before it starts to wear out some of the cells. And after 11 years of operation on Mars, we now suspect were seeing a wear-out of some of those cells.
This leads to a pair of problems. Since the rover cant use the seventh memory bank, it uses its random-access memory or RAM, the kind of memory your computer uses when its on for temporary data storage. The problem is, as soon as the rover (or your computer) is switched off, the information stored in RAM is lost. So if the rover turns off before sending all of its at-risk data back to its handlers at the Jet Propulsion Laboratory in La Canada Flintridge, then those data are lost forever.
Thats an annoying, but manageable, issue, Callas said. The second snag is that the flash memory issue also causes the rover to reboot and when it reboots, it stops the long-term activities the team had planned for the rover and simply waits for further instructions on the ground. On weekends and over the holiday season, when people are out of the office, these unexpected hang-ups can put the team days behind schedule, Callas said.
Its like youre taking a family trip and your car stalls, and every time your car stalls you have to call triple-A but now its stalling every 20 miles, Callas said. Youre not going to make much progress.
The researchers do have a clever little fix, Callas added. They plan on modifying the software so that the rover thinks it only has six banks worth of flash memory which should make it skip faulty bank No. 7, since thats at the very end. (Theyre lucky the faulty segment wasnt right in the middle of the flash memory module, Callas added that would make a fix much more complicated.)
You have a piece of lettuce you want to put on your sandwich and the edge of the lettuce is a little bit brown, and you just cut it off and you put the rest in your sandwich and you go, Callas said by way of analogy. Maybe you have a little less lettuce, but it doesnt have any brown on it.
Opportunity, which along with its twin Spirit arrived at the Red Planet in early 2004, set out to find signs of past water on Earths dry, dusty next-door neighbor. It did that and more, even finding evidence of past habitable environments in its later years that complemented the findings from its descendant, NASAs 2012 rover Curiosity.
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NASA scientists are preparing to hack into the Mars Exploration rover Opportunitys software in hopes of curing a troubling case of amnesia.
Opportunity started experiencing memory problems after software engineers reformatted the robots flash memory in early December.Its a problem many smart phone and home computer users have likely experienced after downloading a new operating system, only to find that something has gone kerflooey with existing applications.
Opportunity already has far exceeded NASAs original expectations, but with a price of roughly $400 million, the space agency is keen to keep the rover going as long as possible. As NASA budgets have dwindled in recent years, agency engineers have focused efforts on repairing equipment and extending missions rather than putting costly projects out to pasture.
The Kepler spacecraft got a new lease on life earlier this year after suffering a seemingly catastrophic malfunction in 2013. NASA astronomers and engineers managed to resurrect the craft by harnessing pressure from sunlight to control the spacecraft following a reaction wheel failure. The newly-dubbed K2 mission has already discovered a new Earth-like planet.
Astronauts have serviced and enhanced the capabilities of the Hubble Space Telescope five times since its initial launch in 1990. Likewise, the Cassini Orbiters mission has been extended three times since it first launch into the Saturn System in 2008. The space agencys Chandra X-ray Observatory, Fermi Gamma-ray Space Telescope, and the Lunar Atmosphere and Dust Environment Explorer (LADEE) all have had their lifespans successfully extended.
Opportunity's memory troubles have not affected normal operations of gathering scientific observational data and, well, roving the Red Planet. However, without the flash memory, the rover cannot retain information overnight during sleep mode. Instead, the rover has had to upload all data from its random-access memory, or RAM, to NASAs Mars Odyssey satellite before powering down for the day.
That solution works fine, as long as Odyssey is in range to receive the data and relay it back to Earth. But Odyssey isnt just hanging out in the Martian atmosphere hovering above the rover. The satellite is in constant motion orbiting around the planet. If Odyssey is out of range when the rover needs to power down, then the data is lost.
In recent weeks, the problem has become even more complicated. The rover is continually attempting to back up to the faulty flash memory, and when it is repeatedly unsuccessful, the software reboots, NASA project manager John Callas explained in an interview with Discovery News. In some instances, the malfunction has resulted in total loss of communication with the rover.
Software engineers at the NASAs Jet Propulsion Laboratory in Pasadena, Calif., think they have come up with a workaround, but it will probably take several weeks to implement. It seems the problem is really centered on just one of the rovers seven flash memory banks. Engineers are attempting to hack into the system and instruct the software to bypass the troublesome memory bank entirely, Callas said.
Opportunity first landed on Mars in January 2004 along with its rover-twin Spirit. The 384-pound rovers were originally expected to spend just three months on the Red Planet, but kept chugging on for years. Spirit prowled the surface of the Red Planet for six years before its communication system petered out in 2010.
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WASHINGTON, Dec. 31 (UPI) -- Researchers at NASA are working to improve the memory of the Mars exploration rover Opportunity after a series of glitches in recent weeks led to what officials are describing as "amnesia" within the its memory banks.
The rover relies on orbital passes from the Mars Odyssey satellite to relay communications and commands to and from NASA, but when a pass does not occur between the rover's power cycles -- a relatively frequent occurrence -- the rover fails to transfer information from its temporary RAM to its permanent flash memory. The rover's repeated attempts and fails to save data to the flash memory cause it to it reboot, essentially erasing its last set of commands received.
"Volatile memory is like the traditional RAM you have in your computer; non-volatile memory uses flash memory technology," Mars Exploration Rover Project Manager John Callas, of NASA's Jet Propulsion Laboratory in Pasadena, Calif., told Discovery News.
"So now we're having these events we call 'amnesia,' which is the rover trying to use the flash memory, but it wasn't able to, so instead it uses the RAM ... it stores telemetry data in that volatile memory, but when the rover goes to sleep and wakes up again, all (the data) is gone. So that's why we call it amnesia -- it forgets what it has done."
Opportunity has been working without flash memory since earlier in December, when NASA first reported the memory problems.
"While we're operating Opportunity in that mode, we are also working on an approach to make the flash memory usable again," Callas said at the time.
"We will be sure to give this approach exhaustive reviews before implementing those changes on the rover."
2014 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
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WASHINGTON, Dec. 31 (UPI) -- Researchers at NASA are working to improve the memory of the Mars exploration rover Opportunity after a series of glitches in recent weeks led to what officials are describing as "amnesia" within the its memory banks.
The rover relies on orbital passes from the Mars Odyssey satellite to relay communications and commands to and from NASA, but when a pass does not occur between the rover's power cycles -- a relatively frequent occurrence -- the rover fails to transfer information from its temporary RAM to its permanent flash memory. The rover's repeated attempts and fails to save data to the flash memory cause it to it reboot, essentially erasing its last set of commands received.
"Volatile memory is like the traditional RAM you have in your computer; non-volatile memory uses flash memory technology," Mars Exploration Rover Project Manager John Callas, of NASA's Jet Propulsion Laboratory in Pasadena, Calif., told Discovery News.
"So now we're having these events we call 'amnesia,' which is the rover trying to use the flash memory, but it wasn't able to, so instead it uses the RAM ... it stores telemetry data in that volatile memory, but when the rover goes to sleep and wakes up again, all (the data) is gone. So that's why we call it amnesia -- it forgets what it has done."
Opportunity has been working without flash memory since earlier in December, when NASA first reported the memory problems.
"While we're operating Opportunity in that mode, we are also working on an approach to make the flash memory usable again," Callas said at the time.
"We will be sure to give this approach exhaustive reviews before implementing those changes on the rover."
2014 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
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NASA Wrench - 3D printing
http://nasa3d.arc.nasa.gov/detail/wrench-mis.
By: liran shoval
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Actress Jessica Chastain Looks into the Future of Space Exploration
There is momentum building as human discovery goes even further into interstellar space. Recently astronomers from the Kepler mission discovered Earth-size planets in the habitable zone. Meanwhile ...
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Actress Jessica Chastain Looks into the Future of Space Exploration - Video
Space Station Crew Members Discuss Life in Space at Holidays with the Media
Aboard the International Space Station, Expedition 42 Commander Barry Wilmore of NASA and Flight Engineer Samantha Cristoforetti of the European Space Agency discussed their research activities.
By: NASA
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Space Station Crew Members Discuss Life in Space at Holidays with the Media - Video
The rover has been trudging across Mars for more than a decade and is starting to fail.
NASA mission controllers are scrambling to get some extra life out of the Mars exploration rover Opportunity with a workaround that cuts off access to a failed flash memory bank that's causing the probe to suffer "amnesia" when it reboots.
Opportunity has been operating on Mars for more than a decaderemarkable, given its primary mission beginning in 2004 was only meant to last three months. The plucky little crawler set an off-Earth roving distance record earlier this year, while another NASA rover, Spirit, went kaput after just six years of exploring the surface of the Red Planet.
Spirit and Opportunity have the same basic mission-control computers and the latter rover's systems are finally starting to show some serious wear-and-tear after years in the harsh Martian elements, according to NASA.
Opportunity has seven banks of Flash memory, which it uses for long-term storage of data collected during a day's work and transferred from its volatile RAM cells. The rover goes to sleep at night and when it wakes up, it's supposed to send data stored in its Flash banks to the Mars Odyssey satellite orbiting in the skies above.
But NASA scientists discovered recently that one of the Flash memory banks has failed completely, causing Opportunity to forget its orders to transmit data to Odyssey when it comes out of a sleep cycle.
That caused periodic bouts of "amnesia," where Opportunity lost data and had to be reset by mission controllers on Earth, NASA told Discovery News.
"The problems started off fairly benign, but now they've become more seriousmuch like an illness, the symptoms were mild, but now with the progression of time things have become more serious," Mars Exploration Rover project manager John Callas, based at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., told the site.
"So now we're having these events we call 'amnesia,' which is the rover trying to use the flash memory, but it wasn't able to, so instead it uses the RAM," Callas continued. "[I]t stores telemetry data in that volatile memory, but when the rover goes to sleep and wakes up again, all [the data) is gone. So that's why we call it amnesiait forgets what it has done."
Over the holidays, the rover began exhibiting a new and potentially mission-ending error. Callas explained that Opportunity is stuck in a loop of trying to reboot itself, because it can't save any data to its Flash storage cells. For a while, it wasn't communicating with Earth at all but has since begun replying to commands sent by the JPL team.
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The spacecraft is approaching Ceres, the next destination in its multi-year tour of the giants of the asteroid belt.
NASA's Dawn spacecraft is approaching Ceres, the next destination in its multi-year tour of the giants of the asteroid belt.
Mission controllers at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif. have programmed Dawn for its approach phase, putting it on pace to arrive at Ceres on March 6, 2015, the space agency said.
Ceres, the largest body in the asteroid belt, is considered a dwarf planet. It's never been visited by a spacecraft before. When Dawn enters the orbit of Ceres this March, it will mark the probe's second such visit to a previously unexplored asteroid belt object.
The Texas-sized dwarf planet has an average diameter of 590 miles. Dawn previously rendezvoused with the protoplanet Vesta, with a diameter averaging 326 miles, the second-biggest body in the collection of small, rocky objects and debris between Mars and Jupiter. The spacecraft spent 14 months orbiting Vesta after arriving in July 2011, capturing close-up imagery of the asteroid.
In just a few months, scientists working on the Dawn mission hope to receive evidence from the probe confirming whether a theory that Ceres possesses an "ocean" under its icy crust is accurate, NASA said.
"Ceres is almost a complete mystery to us," UCLA's Christopher Russell, principal investigator for the Dawn mission, said in a statement. "Ceres, unlike Vesta, has no meteorites linked to it to help reveal its secrets. All we can predict with confidence is that we will be surprised."
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(CNN) -- Imagine a blimp city floating 30 miles above the scorching surface of Venus -- a home for a team of astronauts studying one of the solar system's most inhospitable planets.
NASA is currently doing just that; floating a concept that could one day see a 30-day manned mission to Earth's closest planetary neighbor.
Eventually, the mission could involve a permanent human presence suspended above the planet.
Deep heat
Also known as the morning star, and named after the goddess of love and beauty because it shone the brightest of the five planets known to ancient astronomers, Venus is a hot, sulphurous, hellish place whose surface has more volcanoes than any other planet in the solar system.
With a mean temperature of 462 degrees Celsius (863 degrees Fahrenheit), an atmospheric pressure 92 times greater than Earth's and a cloud layer of sulphuric acid, even probes to Venus have lasted little more than two hours. Its surface is hot enough to melt lead and its atmospheric pressure is the equivalent of diving a mile underwater.
But above this cauldron of carbon dioxide at an altitude of 50km (30 miles) scientists say the conditions are as close to Earth's as you'll find anywhere in the solar system.
The gravity at this altitude is only slightly lower than that of Earth, its atmospheric pressure is similar and the aerospace provides enough protection from solar radiation to make it no more dangerous than taking a trip to Canada.
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