NASA Finds Ancient Organic Material and New Methane Activity on Mars


NASA’s Curiosity rover  has found organic molecules in three-billion-year-old sedimentary rocks near the surface of Mars, which suggest the planet could have supported ancient life. The rover also detected seasonal variations in the levels of methane in the atmosphere - new evidence that relates to the search for current life. Water-rock chemistry might have generated the methane, but scientists can't rule out the possibility of biological origins.