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IMAGE OF THE DAY
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The Quest for the Lunar GRAIL
Latest News About NASA's Grail Moon Gravity Mission
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COUNTDOWNS
Large Synoptic Survey Telescope (LSST)
Stacking Up the 10 Biggest Telescopes on Earth
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INFOGRAPHICS
Infographic shows how GRAIL mission maps the moon's gravity field
How NASA's GRAIL Probes Will Map the Moon's Gravity (Infographic)
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WALLPAPERS
Plane Crosses Full Moon
Spectacular Silhouette: Skywatcher Sees Plane Crossing Small Full Moon
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Human Spaceflight
Six space station astronauts will celebrate New Year's in space.
Astronauts to Ring in New Year From Space
Six residents of the International Space Station will celebrate the New Year from space.
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Private Spaceflight
An artist's illustration of SpaceX's Dragon space capsule in Earth orbit.
NASA's Next Commercial Crew Solicitation Expect...
The next phase of private-spacecraft development should be a 'pretty big jump,' NASA says.
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Science & Astronomy
An artist's depiction of NASA's Grail-A spacecraft arriving in lunar orbit on Dec. 31, 2011.
NASA's New Year's Resolution: Have 2 Gravity Pr...
NASA's twin Grail gravity-mapping probes
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Search For Life
Mars Lava Tube
Martian Life Might Thrive in Lava Tubes, Study ...
Microbes can survive in frigid lava tubes on Earth — and perhaps Mars as well, scientists say.
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Skywatching
False-color image of a rare early Quadrantid, captured by a NASA meteor camera in 2010.
Quadrantid Meteor Shower, First of 2012, May Da...
The Quadrantid meteor shower should provide a nice light show for skywatchers on Jan. 4.
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Tech & Robots
icebergs, iceberg b-15j, iceberg b-15, antarctica icebergs, iceberg calving, nasa satellite ice images, antarctic icebergs
12-Year-Old Iceberg's Death Caught on Camera
It takes many years for these giants to melt.
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Mars’ dust storms are the largest in the solar system, capable of blanketing the red planet for months.
Martian Surface Similar to Earth and Moon
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Manipulating an orbiting asteroid would require more effort than was employed to develop the first nuclear bomb during the Manhattan Project.
Asteroids are small, airless rocky worlds that revolve around ...
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NASA's Dawn spacecraft obtained this image on its approach to the protoplanet Vesta, the second-most massive object in the main asteroid belt. The image was obtained on June 20, 2011.
Vesta is the second largest asteroid in the solar system.
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On Feb. 13th at 1738 UT, sunspot 1158 unleashed the strongest solar flare of the year so far, an M6.6-category X-ray irradiance magnitude blast. NASA's Solar Dynamics Observatory recorded an intense flash of extreme ultraviolet radiation. The source of th
The sun's unceasing activity affects our planet beyond providi...
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The Sun’s atmosphere can fling out streams of high-energy particles called solar flares. The charged particles can disrupt communication & satellite technology. Solar flares can release untold amounts of energy.
The sun is at the heart of our solar system and is the largest...
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Solar System at Space.com: Explore Solar System Articles, Features and Images
The sun is at the heart of our solar system and 8 planets orbi...
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