Conventionally, the moon is thought to have formed during one big impact, but a three-impact model might make more sense ...

"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 ...

"The most convincing scenario is that most of the building blocks of Earth and Theia originated in the inner solar system.

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

Over the past few days, an astronomical piece of space news has been circulating around the internet: NASA purportedly confirmed that Earth has acquired a second moon that will stay with us until 2083 ...

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

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