Mars rover, Opportunity, is driving to a new study area after a dramatic finish to 20 months on "Cape York" with examination of a rock intensely altered by water.
NASA's Mars rover Curiosity just might be the latest in a long line of Mars-exploring robots to discover the building blocks for primitive life on the Red Planet.
An analysis of a rock sample collected by NASA's Curiosity rover shows ancient Mars could have supported living microbes.
Algae-like structures inside a Sri Lankan meteorite are clear evidence of panspermia, the idea that life exists throughout the universe, say astrobiologists.
Astronomers are coming to believe that some of the solar system's moons might be more likely places to search for life than Mars.
Curiosity, is about to start drilling into the Red Planet for the first time, after discovering a treasure trove of what looks like water-created minerals.