Old rocks found in the Australian Outback have some weighty implications, scientists say: They hint at the environment in which life on Earth originated and suggest a location to search for life on Mars.
Scientists in Australia say they have found biological signatures of life in rocks that also show the presence of a hot spring, lending weight to a theory that the earliest life on Earth might have originated in freshwater hot springs on land rather than in deep-sea hydrothermal vents. More >>
