When ancient microbes died, they did not leave skeletons though some have argued controversially that colonies left ancient microstructures ...

Deep in the Libyan Sahara lies Jabal Arkanū, a massive, near-perfect set of stone rings once mistaken for a meteorite impact ...

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"During the early solar system's game of cosmic billiards, Earth was struck by a neighbor,” said Dauphas. “It was a lucky shot. Without the moon's steadying influence on our planet's tilt, the climate ...

The ISS Crew Earth Observations Facility and NASA's Earth Science and Remote Sensing Unit (Johnson Space Center) collaborate ...

A specially trained algorithm could aid the search for biological activity both on the early Earth and on other worlds.

Analysis of a space rock that landed on a frozen Michigan lake revealed a rich array of extraterrestrial organic compounds.

Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, ...

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One of the most elegant theories about the origins of life on our planet is that it was kick-started by a delivery from outer ...

An Australian man spent years trying to crack open what he thought was a gold-rich rock-only to learn it was a rare meteorite ...

When a meteor flashes across the night sky, it’s more than a beautiful streak of light. It’s a delivery from deep space—an ...