Weightless flights, stellar delights

Stephen Hawking flies high in zero gravity. Plus: A SpaceX deal and images from the Hubble.

The physicist gets an "amazing" experience of weightlessness and a rare moment out of his wheelchair. His next goal: "Space, here I come."
April 27, 2007

The U.S. Air Force gives a thumbs-up to a five-year deal with Elon Musk's space transport company.
April 26, 2007

See footage from cameras built by a Pasadena, Calif.-based commercial space company and hear from the CEO at the NASA Technology Showcase.
April 26, 2007

NASA and ESA celebrate the Hubble Space Telescope's anniversary with colliding stars and supernovas.
April 25, 2007

Astronomers speculate that a rocky planet roughly the same size and temperature of Earth exists about 20 light-years away.
April 24, 2007

The Hinode spacecraft and STEREO satellites are taking never-before-seen images of the sun--including some in 3D.
April 23, 2007