Meteor impact may have started a 'mega-tsunami' on early Mars
The crater could be more evidence for ancient oceans.
Curiosity rover finds gas levels on Mars hinting at possibility of life
Methane suggests there might be recent organic activity.
NASA hopes to send a probe to Alpha Centauri in 2069
Even your grandkids might not be around to see the results.
NASA forms a coalition to look for life on other planets
NASA knows that it can't rely solely on astronomers and robotic rovers to find life on other world...
NASA thinks we'll find signs of extraterrestrial life in 20 years
The quest to find proof of life beyond Earth hasn't been without its setbacks, but NASA isn't dete...
Curiosity finds evidence of life-giving nitrates in Mars rocks
NASA's Curiosity rover isn't done finding signs that Mars once had the prime ingredients for life....
The Big Picture: Exobiotanica, a bonsai tree in space
This is "Exobiotanica Botanical Space Flight," the latest project from Japanese artist Makoto Azum...