Neil Armstrong, First Man on the Moon, Dies
"That's one small step for a man...."
Mars Rover's First Color Panorama
Curiosity rover gets ready to roam Martian surface.
NASA's 'Terror' Video Goes Viral
NASA scores hit with video about landing new rover on Mars.
Astronauts' Eyesight Damaged by Flight
Why are veterans with 20/20 vision unable to focus?
First Meteor Shower of 2012 Dazzles
Quadrantid meteors best before dawn Wednesday.
Pictures of Youngest Planet Yet Seen
First-ever images of planet in the making
Destination Jupiter: NASA Launches Juno
NASA probe launches to solar system's largest planet.
The Sky is Falling! Biggest Meteor Shower of Year
Perseids happen annually in mid-August.
New Planet Right in Our Neighborhood
How many science fiction stories have been written about Alpha Centauri, the closest star system to our own? How many...
Bling! A Diamond Planet
Arthur C. Clarke, the late science-fiction writer most famous for “2001: A Space Odyssey,” let his mind wander all over the...
Watch: Comet Seen From Space Station
Astronaut Dan Burbank captures stunning view of Comet Lovejoy from orbit.
Watch: NASA Discovers Two Earth-Sized Planets
Kepler space telescope finds two new planets orbiting a Sun-like star.
Watch: Are We Alone in the Universe?
NASA launches Kepler probe to search for other life-supporting planets.