According to a new theory, there were two giant impacts in a row, separated by about one million years, involving a Mars-sized 'Theia' and proto-Earth. In this image, the proposed hit-and-run ...

YR4 has a very small chance of striking Earth when its orbit briefly intersects our planet's in December 2032.

The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the solar system was just getting started, a Mars-size protoplanet named Theia ...

These structures are theorized to contain remnants of Theia's materials ... 100,000 years of radiation': A supernova hit Earth and it may have triggered an evolutionary leap Proof of the AFTERLIFE?: ...

While the asteroid is relatively small, it could still cause significant damage if it were to hit Earth. The asteroid is expected to be visible from Earth through April, allowing astronomers to ...

The probability of the asteroid hitting Earth has fluctuated over the past few weeks Anna Lazarus Caplan is a writer-reporter for PEOPLE. She has been working at PEOPLE since 2022. Her work ...

NASA estimates that the space rock has a 0.0017% chance of hitting Earth in December 2032, while the ESA has a similar risk assessment of 0.002%. That’s a 1 in 59,000 possibility of impact ...

A so-called "city killer" asteroid scientists have been monitoring after discovering it had a small chance of hitting Earth in 2032 "no longer poses a significant threat," NASA said in its latest ...

Although the odds of the asteroid hitting the Earth have been dramatically reduced, NASA also says the new data has increased the chances of 2024 YR4 impacting the moon to one percent. CNEOS ...