John Grunsfeld

Briny water flows during the summer months on Mars, raising the possibility that the planet long thought to be arid could support life today, scientists analyzing data from a NASA spacecraft said Sept. 28.

New findings from Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water is flowing intermittently on Mars, the US National Aeronautics and Space Administration (NASA) revealed on Monday.

Astronomers hunting for another Earth have found the closest match yet, a potentially rocky planet circling its star at the same distance as our home orbits the Sun, NASA said July 23.

NASA said May 26 it has chosen a trove of instruments to send to Jupiter's ice-covered moon Europa, as it press forward with its search for evidence the orb could support life.

The nine gadgets -- from cameras to radars to magnetic field gauges -- will be used to try to determine if Europa has an ocean beneath its glacial surface, as scientists have long suspected.