NASA’s Epoxi zooms in on Hartley-2 comet

After a 2.5-year journey across the solar system, the U.S. space probe Epoxi readied to swing…

Bad weather delays space shuttle launch to Friday

NASA postponed shuttle Discovery's launch to Friday to wait out bad weather from an approaching cold…

Discovery launch heralds last stages of shuttle era

Space shuttle Discovery, the first of NASA's three shuttles facing retirement, was at the launch pad…

Earth-size planets abound in Milky Way: study

One out of four Sun-like stars in our Milky Way galaxy could host Earth-size planets, making…

Space Shuttle Discovery’s final launch delayed: NASA

The launch of the space shuttle Discovery on its final scheduled mission has been delayed for…

China says manned space station possible around 2020

China said Wednesday that it planned to complete a manned space station around 2020, as the…

Astronaut earns Foursquare badge

A NASA astronaut used the popular location-sharing service Foursquare last week to "check in" from space.

Virgin spaceship to pass new milestone

The world’s first private passenger spaceship will pass another milestone toward its commercial lift-off Friday, at…

Moon crash kicks up ice, silver, mercury: NASA

A rocket sent crashing into the Moon last year kicked up several hundred kilograms of water,…

Ancient galaxy is more than 13 billion light years away

European astronomers on Wednesday said a galaxy born in the childhood of the Universe lies at…