An active volcanic eruption on Jupiter's moon Io was captured in this false color image taken on February 22, 2000…
The Soyuz TMA-9 spacecraft launches from the Baikonur Cosmodrome in Kazakhstan Sept. 18, 2006 carrying a new crew to the…
This composite image of the Crab Nebula shows x-ray (blue) and optical (red) superimposed.
In December 2004, a neutron star flared up so brightly, it temporarily blinded all the x-ray satellites in space, and…
This view of Uranus was recorded by Voyager 2 on Jan 25, 1986, as the spacecraft left the planet behind…
The Spirit rover had to dig a little deeper to find out more about this martian rock, dubbed "Wishstone." Spirit…
In visible light images, more than a thousand galaxies are seen to lie within a volume about 20 million light-years…
NASA's Mars Exploration Rover Spirit moved its robotic arm during the rover's 1,277th Martian day (Aug. 6) for the first…
A violent and chaotic-looking mass of gas and dust is seen in this Hubble Space Telescope image of a nearby…
Astronaut Steve Robinson turns the camera on himself during his historic repair job "underneath" Discovery on August 3. The Shuttle's…
