One Moon in Light, One in Dark
This Cassini image shows Saturn's shadowy side, its rings, and two of its moons: Mimas and Enceladus. Mimas is on…
First Pictures After Hubble’s Breakdown
After its brief breakdown last month, the Hubble Space Telescope's main camera is gathering science data again. The Advanced Camera…
A Day of Rest for the Astronauts
After eight days in space, and three spacewalks, the crew of the space shuttle Discovery will be taking the day…
Inflatable Habitat Reaches Orbit
Robert Bigelow's dream of a thriving space tourism industry took a significant step forward today with the launch of the…
Astronauts Wrap Up Third Spacewalk
Astronauts Piers Sellers and Mike Fossum wrapped up the third and final spacewalk for space shuttle mission STS-121. During the…
Science Updates from Venus Express
ESA's Venus Express spacecraft concluded its in-orbit commissioning phase last week, and the agency has declared it ready to enter…
Astrophoto: The Goldilocks Variable in the Dumbbell Nebula by Stefan Heutz
We are very fortunate, and perhaps lucky, to inhabit a planet near a star whose behavior has been relatively monotonous…
Epimetheus in Saturn’s Glare
Look at this photograph very carefully. Just below Saturn's rings, to the left of the bright side of the planet…
Spirit Finds Meteorites?
NASA's Spirit rover took this photograph of the surrounding hilly terrain, as well as several rocks. The two light-coloured, smooth…
Astronauts Take Out the Trash
The Italian Leonardo module was carried to the International Space Station filled with more than 3,175 kg (7,000 pounds) of…