Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying Theia, melting large fractions of ...

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 ...

On July 4, 2005, NASA executed a bold experiment in deep space: a spacecraft traveling faster than any bullet crashed into ...

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

Earth and the planetary object that gave rise to the Moon were likely born in the same region of the solar system.

The lack of clarity regarding the collision and the object that Earth collided with raised many questions, but they were ...

Could a passing star be on a collision course with our solar system and, eventually, Earth? It’s difficult to know if such an outcome is likely. Recently, researchers have found the Milky Way likely ...

This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course by a passing star. Such a world-shattering cataclysm is extremely ...

The Planetary Defence System of the ESA earlier identified the 40,000th near-Earth asteroid. The current tally since the ESA ...

A team of planetary scientists, ecologists, and marine biologists affiliated with several institutions in the U.S. and one in the U.K., has found evidence suggesting that parts of the world's oceans ...