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

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

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

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

November 2025 promises cosmic chaos with three meteor showers and a double planetary retrograde. Mercury and Jupiter's backward motion, coupled with a ...

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 ...

New research shows that Theia, the planet that collided with Earth and formed the Moon, was a rocky world born closer to the ...

The early years of our solar system were a period of unimaginable chaos and violence, a gravitational free-for-all where colliding planetary embryos competed for survival. In this tumultuous ...

NASA’s Planetary Defense Coordination Office sounds like something out of a disaster movie, but its work is far more ...

There’s a bit of a paradox about our galaxy: it’s both jam-packed with stars and cavernously empty. The Milky Way is crowded in the sense that it holds hundreds of billions of stars, as well as ...