December begins with a rare Cold Supermoon, the last full moon of the year, amplifying emotions and offering a chance for ...

"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 ...

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

Chinese researchers have discovered that interstitial carbon in iron-carbon alloys behaves in a superionic, liquid-like state under Earth’s core pressure and temperature conditions. Beneath Earth’s ...

For the first time ever, a probe on Mars felt the planet’s trembling — seismic quakes, meteor impacts, and the rumble of its inner core. The data changed everything we thought we knew about the Red ...

The near-Earth asteroid Eros will pass by the galaxy Andromeda this evening. The rare event will be streamed live.

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

While the comet is not scheduled to make its closest approach to Earth until Friday, December 19th, the Martian flotilla has ...

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 ...

About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world with enough force to melt vast portions of its mantle and scatter a huge ...