Asteroid on Track for Close Encounter with Earth

An asteroid four times the length of a football field will pass closer to Earth than the moon when it hurtles through our solar system tomorrow morning.

Ring of Antimatter Found in Earth's Orbit

The earth has a ring of antimatter encircling it

Largest-Ever Survey of Cosmic History Confirms That Dark Energy Exists, Is Tearing the Universe Apart

After a five-year study of 200,000 galaxies, scientists are more certain than ever that dark energy acts as a repulsive force, tearing the universe apart at an accelerating rate.

Touch the Moon without Going to the Moon

Tennesseans have the rare chance to touch a nearly 4-billion-year-old piece of moon rock at NASA's Driven to Explore traveling exhibit, a multimedia experience that immerses visitors in the story of NASA.

NASA Postpones Space Shuttle Endeavour's Last Mission Yet Again

NASA said today that it has decided to push back the final launch of the space shuttle Endeavour until at least May 16. This is the third delay since the shuttle's April 29 launch was scrubbed due to problems with its hydraulic systems.

NASA Probe Proves two of Einstein's Theories Correct

Being a super genius sure is hard.

NASA Postpones Space Shuttle Endeavour's Last Mission

Endeavour's launch has drawn widespread attention because it's the second-to-last for the U.S. space shuttle program, and it's commanded by the husband of Arizona Rep. Gabrielle Giffords, who was shot in the head during a shooting rampage in Tucson in January. Six people were killed and 13, including Giffords, were injured.

Endeavor To Launch With Special Payload

When Space Shuttle Endeavor lifts off the pad in Florida this Friday, it will be carrying a very special payload.

NASA Announciement, Who Will Get the Space Shuttles

NASA has announced where its retiring space shuttles will be put out to pasture.

NASA Looks to a New Generation of Space Technology

As NASA celebrates the 30th anniversary of the first space shuttle launch, the agency is also looking ahead to the next chapter in space exploration.