Welcome to Interactive Space

By precisely tracking NASA's Cassini spacecraft on its low swoops over Saturn's moon Titan, scientists have determined the distribution of materials in the moon's interior.

Like a hard-driving athlete whose joints need help, the giant "Mars antenna" at NASA's Deep Space Network site in Goldstone, Calif. has begun major, delicate surgery.

Watch school teams test their software-enabled Lego robots via a live Internet program during the annual Southern California NASA Explorer Schools Robotics Competition.

Planetary scientists, who have been puzzling for years over the surface features on Saturn's moon Titan, have now found some recognizable analogies to a type of terrain on Earth known as karst topography.

The Herschel Space Observatory has revealed the chemical fingerprints of potentially life-enabling organic molecules in the Orion nebula.

Mars has diversity. In at least one area, Martian sand dunes are actively migrating. In another, they have been stationary for 100,000 years.

One year ago this week, NASA's Kepler mission soared into the dark night sky, leaving a bright glow in its wake as it began to search for other worlds like Earth.

NASA, in cooperation with local technology firms and sponsors, launches a nationwide series of high school robotics competitions that begin March 5 and 6.

NASA's newest Mars orbiter has passed a data-volume milestone unimaginable a generation ago and still difficult to fathom - 100 terabits.

Extensive radar mapping of the middle-latitude region of northern Mars shows that thick masses of buried ice are quite common beneath protective coverings of rubble.