The Obama administration abandons NASA's Constellation Moon program, but sets its sights farther afield.
A meaty review of the impact hazard facing Earth has just been released by the U.S. National Research Council. The bottom line? If Congress and NASA are serious about finding all the truly threatening asteroids in our planet's vicinity, they'd better fund the search properly.
A globetrotting mascot gets a behind-the-scenes tour of the world's largest single-dish radio telescope.
Thanks to eight months of urging by amateur astronomers, President Obama and his family are about to host the first-ever star party at the White House.
When NASA slams a spacecraft into the dust near the Moon's south pole next month, the crater named Cabeus will briefly achieve worldwide fame.
Astronomers shed new light on our picture of the early Universe.
At the "Giant Leaps" symposium, an astronaut-studded cast recalled the glory days of human space exploration — and where we might be headed next.
have you ever wanted to have a say in what the world's most powerful telescope looks at? From now until March 31st, you can!
NASA managers have decided on a date to dispatch Space Shuttle flight STS 125, the final servicing mission to the Hubble Space Telescope.
What will be the best ways to discover extrasolar planets in the coming years? The best scientific payoffs demand smart planning now.
Preparations are well under way for the August 2008 servicing mission to the Hubble Space Telescope.