Headlines
Photos: Hubble's Cosmic Comeback
NASA reveals images from newly refurbished telescope.
China Breaks Ground on Space Launch Center
China breaks ground on its fourth space center.
Space Shuttle Lands in California After Detour
Space shuttle Discovery lands in California after weather detour, ends 2-week mission
Defying Gravity? NASA Scientists Levitate Mice
Scientists levitate mice to study low gravity.
Checking Kids' Homework From Space?
When you're an astronaut, how do you check your kids' homework?
Colbert Salutes NASA, Space Shuttle Discovery
On eve of scheduled shuttle launch, comedian Colbert broadcasts message to NASA.
Inside NASA's Next Big Space Project
Charlie Gibson takes an exclusive look at NASA's mission to the moon and beyond.
What's in Space Shuttle? Treadmills, Frisbees
Cargo includes Stephen Colbert (sort of) and Buzz Lightyear.
Colbert Wins NASA Contest, Sort of
Colbert wins space station contest but settles for consolation prize.
Spacewalkers Removal Hefty Tank in Space
Discovery astronauts successfully complete first spacewalk of the mission.
From Migrant Worker to Astronaut
Discovery astronaut Jose Hernandez is a Hispanic success story.
Stuck Bolt, Dead Battery Bedevil Hubble Repairs
Balky bolt gives fits to astronauts fixing Hubble; spacewalkers put off 1 planned repair job
Astronauts Find 21-Inch Scratch on Shuttle
NASA says debris hit shuttle 104 seconds into launch, leaving line of scratches.
Asteroid Strike: Who Will Protect You?
If an asteroid were detected on a collision course, would we be prepared?
US Billionaire Blasts Off Into Space Again
US billionaire promises productive space trip with larger space station crew
Russia: No More Space Tourists After 2009
Russia space chief: No more space tourists after March because station crew being doubled
Blogs
Billionaire Bummer: Space Tourism to Stop
Russia says Space Station will be too crowded.
Videos
WATCH: Charlie Gibson on the Future of NASA
Charlie Gibson reports from the Johnson Space Center in Houston.
WATCH: 40 Years Ago: Apollo 11 Moonwalk
ABC's Ned Potter on NASA's historic trip to the moon.
WATCH: Final Spacewalk for Atlantis Astronauts
The shuttle crew finalizes Hubble Space Telescope repairs.
WATCH: World News (05.18.09)
White House proposal for auto carbon emission standards and fuel efficiency.
WATCH: Spacewalk: Day Five
Atlantis astronauts take their final spacewalk to repair the Hubble Telescope.
WATCH: High Drama in Outer Space
NASA was biting nails over the eight-hour spacewalk.
WATCH: Astronauts Prepare for Fourth Space Walk
Atlantis astronauts set to perform most difficult fix yet to Hubble telescope.
WATCH: Mission Accomplished
Astronauts restore the guidance system for the Hubble Telescope.
Slideshows
PHOTOS: Flying Colors: Comet Lulin Streaks Past Earth
Backwards-flying, green comet makes its closest approach to Earth today.
PHOTOS: Northern Lights Mystery Solved?
Strange explosions may be the force behind dazzling phenomenon.
