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X Prize Eyes New Contests for Spaceflight Innovation
X Prize officials aren't revealing any details yet, though.
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Alien Big Apple: Artist Envisions NYC on Other Planets
The project showcases the diversity of worlds in our solar system.
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How Space Tourism Could Help Save Planet Earth
Seeing our fragile Earth hanging alone in space could inspire people to take the long view.
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Huge Rock Crashes Into Moon, Sparks Giant Explosion
A new 65-foot-wide impact crater is the result.
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Majestic Milky Way Shines Over Acadia National Park (Photo)
Photographer Christopher Georgia captured this amazing image of the Milky Way Galaxy from Acadia ...
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Image of the Day
Auroras shine over Yellowknife, Canada.
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TOP STORIES
Pow! Mars Hit By Space Rocks 200 Times a Year
Hypersonic Weapons Could Hit Battlefield by 2025
The Greatest Lunar Crashes Ever
56,000 MPH Space Rock Hits Moon, Explosion Seen | Video
Space History Photo: Sikorsky JH-19D Chickasaw Helicopter
IMAGE ALBUMS
Latest Photos from NASA's Mars Reconnaissance Orbiter
How NYC Would Look on Other Planets (Gallery)
Space-y Photos from Maker Faire Bay Area 2013
Best Space Photos of the Week - May 18, 2013
IMAGE OF THE DAY
It's Automatic
TOPICS
Space Weather, Solar Flares & Sun Storms: Latest News
COUNTDOWNS
Vote Now! Best Space Stories of the Week - May 19, 2013
INFOGRAPHICS
A Space Telescope Around Mars? How Old Spy Satellite Tech Could Do It (Infographic)
WALLPAPERS
Clearwater | Space Wallpaper
Human Spaceflight
US Spaceflight Ambitions Must Face Budget Reali...
The agency must take a realist attitude to what can be done with little money, Bolden said.
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Amazon CEO's Moon Rocket Engines on Public View in Kansas
Did 'Star Trek' Give Rise to NASA's 'Space Shuttle'?
Mind Meld! Astronauts Meet 'Star Trek Into Darkness' Stars in Webcast Today
Private Spaceflight
Private Space Plane Arrives in California for K...
Dream Chaser's first free-flight test is slated for later this year.
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Private Mars Flyby Mission Ponders NASA & Commercial Rockets
Apollo 13 Astronaut Jim Lovell Joins Private Moon Flight Company
'Pumpkin' Moonship for Private Manned Lunar Landings Passes Key Review
Science & Astronomy
Fallout from Huge Solar Flare Sideswipes Earth ...
The eruption shouldn't pose a threat to Earth but may supercharge northern lights displays.
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Brilliant Science Blunders: Astrophysicist Mario Livio Speaks Out
Huge Asteroid to Fly Past Earth This Month
Mars Rover Opportunity Breaks US Record for Off-Planet Driving
Search For Life
NASA's Planet-Hunting Kepler Telescope Will Hav...
NASA's Kepler has revolutionized exoplanet science, researchers say.
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Congress to Discuss Search for 'Alien Earths' Today
How Exoplanet Atmosphere Density Can Change Odds of Alien Life
Bizarre Mars Mountain Possibly Built by Wind, Not Water
Skywatching
Comet ISON: How to See Potential 'Comet of the ...
The online Slooh Space Camera will provide live views of Comet ISON Sunday (May 19) at 4:45 p.m. ET (2...
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Spectacular Auroras Dance Over Michigan in Time-Lapse Video
Best Time to See Moon Mountains in May Is Now
Jaw-Dropping Views of Night Sky and Earth Win Photo Contest
Tech
Electric Cars on Earth and Mars: How They Stack Up
Electric vehicles have no real competitors for the Martian market.
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How Electric Spacecraft Could Fly NASA to Mars
New Rocket Fuel Helps NASA 'Go Green'
NASA Tests Orion Spaceship's Parachutes with Mock Glitch
Reference
Exoplanets: Worlds Beyond Our Solar System
More than 800 extrasolar planets have been discovered.
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Space Weat...
The sun's unceasing activity affects our planet beyond providi...
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Solar Ecli...
Total solar eclipses are one of Nature’s grandest events. What...
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Arecibo Ob...
Arecibo Observatory has been used to send a SETI message as we...
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What is Da...
Dark matter emits no light, and cannot be directly observed, b...
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What is Da...
Dark energy is a mysterious quantity that makes up, along with...
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VIDEO
How To Bake A Mars Pellet – Curiosity's Drill S...
The Mobile Science Lab flashes some complex moves to get rock samples from drill bit to baking chamber for chemical analysis (CHIMRA experiment).
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Quadruple X-Flaring Sunspot Is A...
After a day of rest, active region 1748 unleash...
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Bring Some Asteroid To Earth: OS...
NASA's Origins-Spectral Interpretation Resource...
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Asteroid To Swing By Earth Is '9...
Asteroid 1998 QE2 is about 1.7 miles in size an...
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Dizzying View: World Trade Cente...
Hold onto your lunch! Watch construction worker...
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Supermassive Black Holes May Sta...
NSF's VLA radio-telescope watched a black hole ...
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Four Mammoth X-Flares: Spacecraf...
NASA's Solar Dynamics Observatory has its eyes ...
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Astronaut Chris Hadfield & Crew ...
The ISS commander and his expedition 35 crewmat...
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How Many Solar Flares Can You Se...
The Sun erupted with 3 X-Class Flares (X1.7, X2...
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Commander Chris Hadfield & Exped...
Commander Chris Hadfield, Soyuz Commander Roman...
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