Extraterrestrial Life

Seven years into its three-month mission, the Mars rover Opportunity reaches Endeavour Crater, a possible geologic treasure trove. John Matson reports

The Opportunity rover is less than 50 meters from the crater rim and is due to pull up to it later this week

Blog documenting quest to replicate finding could be taste of things to come.

A glut of alien sci-fi films comes at a time when scientific discoveries are making the existence of life beyond Earth seem more and more plausible

Newfound features on the Red Planet hint that liquid water may still exist there

The site is a giant crater called Gale, thought to harbor clues of ancient water activity on the Martian surface

Flagship missions at risk as astrophysics funding shrinks.

NASA's Kepler mission's principal investigator, Bill Borucki, talks about the search for exoplanets that might be habitable. Part 2 of 2. John Matson reports

NASA's Kepler mission's principal investigator, Bill Borucki, talks about the search for exoplanets that might be in habitable zones around their stars. John Matson reports