NASA
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Historic first image from new NPP satellite released
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This exquisitely detailed shot of eastern North America was taken by the VIIRS instrument aboard the newest generation of earth-observing satellite, NPP.
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Inspect every inch of Asteroid Vesta in marvelous 3-D (VIDEO)
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You're practically in the same room with this unusual asteroid in a new 3-D animation from NASA's Dawn spacecraft.
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Martian dust devils dance in an uncanny spectacle (VIDEOS)
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The Martian surface is alive with a twirling troupe of dust tornadoes, as this intriguing footage from NASA's Mars buggies attests.
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NASA grows audience, credibility through tweetups
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Rocket science isn't easily explainable in 140 characters, but NASA is asking a group people to do just that with a series of VIP tours for some of its ardent Twitter followers.
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WATCH: Astronauts film Northern lights and thunderstorms in HD
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This dreamlike film shows what the crew of the International Space Station sees as they pass over the lightning-veined Earth at night.
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WATCH: Bumbling NASA astronauts trip, fall down on the Moon
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That's one small step for man, one giant leap for OOPS, ASTRONAUT GO BOOM BOOM.
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NASA releases movie of Earth-hugging Asteroid 2005 YU55
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Ground stations caught footage of asteroid YU55 as it made a historic brush by Earth last night. It kind of looks like a doughnut hole.
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Asteroid 2005 YU55 about to smash into the Earth!! (Not)
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A giant asteroid will pass closer than the Moon tonight around 6:30 p.m. Are we all doomed? Hint: No.
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See the Moon's major landmarks in spooky detail (VIDEO)
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For Halloween, take a ghostly journey around the pockmarked wasteland of the Moon via this exquisitely rendered NASA movie.
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Earth is burning! A decade of wildfires, mapped (VIDEO)
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A fascinating NASA video shows the location of every major fire that has sprouted up in the past decade.
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Orionids 2011: NASA sees meteor showers in ways you never will
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During Saturday morning's Orionids shower, scientists will be watching for shooting stars that pound the moon in fiery explosions.
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Meet the new generation of U.S. weather satellite: NPP / VIIRS
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The next generation of U.S. weather satellites will tackle both daily weather forecasting and long-term climate change.
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NASA: Climate change shrinks Arctic sea ice to near-record level
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The Arctic ice cap reached its second-lowest extent in recorded history in Sept. 2011, and the pace of the melting appears to be quickening.
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Comet smashes into the sun; massive explosion ensues (VIDEO)
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A comet that dived into the sun on Oct. 1 was followed by a spectacular coronal mass ejection. Is there a link between the two events?
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Location of fallen UARS satellite debris is still a mystery
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The bus-sized NASA satellite known as UARS fell back to earth this weekend. But where did it land?
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NASA's dead satellite falls, but space officials don't know where it hit
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NASA's dead 6-ton satellite plunged to Earth early Saturday, but more than eight hours later, U.S. space officials didn't know just where it hit.
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Falling satellite slows down, could hit Earth Friday-Saturday
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A 6-ton NASA satellite on a collision course with Earth clung to space Friday, apparently flipping position in its ever-lower orbit and stalling its death plunge.
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WATCH: An unusual view of the Aurora Australis, from space
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Eerie waves of green light swirl over the earth's southern pole in this Sept. 17 video captured by astronauts aboard the International Space Station.
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