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Extraterrestrial Life323 articles archived since 1845

Mars Surface Glass Could Hold Ancient Fossils

Scientists have found ancient "impact glass" on the surface of Mars, which formed when asteroids struck, a billion or more years ago. If anything was alive at the time, biological materials could be trapped inside...

June 12, 2015 — Christopher Intagliata

Enceladus Might Be a Methane Hotspot

NASA’s Cassini spacecraft spotted a surprising amount of methane erupting from Saturn’s moon Enceladus, suggesting it harbors more methane than we thought. Clara Moskowitz reports...

March 25, 2015 — Clara Moskowitz

Titan Could Host Life "Not As We Know It"

Saturn's moon Titan is too cold for cell membranes to form as they do on Earth. But researchers have come up with a cell membrane that could exist on Titan. Christopher Intagliata reports...

March 3, 2015 — Christopher Intagliata

Bacteria Got an Early Fix on Nitrogen

New evidence points to the evolution of the ability for bacteria to grab nitrogen from the atmosphere some 3.2 billion years ago, about 1.2 billion years earlier than thought—with implications for finding extraterrestrial life...

February 23, 2015 — Lee Billings
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Scientific American Unlimited

Scientific American Unlimited