Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

"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 ...

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

Scientists may finally understand how a unique rock type was created on the moon and came to be distributed across the lunar surface. The revelation could solve a puzzle that has long confused ...

The Moon has long been treated as a solved story, a familiar backdrop that humans mapped, walked on and then mentally filed away. Fresh work by NASA scientists is quietly overturning that assumption, ...

The moon may still be geologically active, judging from the way the lunar far side is wrinkling as the moon contracts. At least, that's what planetary scientists who have discovered 266 lunar "wrinkle ...

New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon ...

Theia, the world that helped form the Moon, came from the Solar System. Chemical clues in Earth and Moon rocks reveal this ...

Humanity’s influence on the moon is so great that we should define a new geological epoch, just as we are doing on Earth with the creation of the Anthropocene, researchers argue. We should also create ...

Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...

Geologic processes, like your mother, are both fundamentally responsible for life as we know it and probably something you don't think about very much. (You did call your mother on Sunday, right?) ...

A new study reveals how shifting ice shells on icy moons can cause dramatic pressure changes, sometimes enough to boil their hidden oceans. The outer planets of our Solar System are accompanied by ...