Originally, the hypothesis was that Theia gave the Earth a glancing blow, and the proto-Earth and Theia lost pieces ending up ...

This artistic animation shows asteroid 2024 YR4 passing by Earth. Astronomers created a 3D image of the newly discovered asteroid after observing it with a telescope in Chile. (9NOIRLab/NSF/AURA/R.

What are some of the largest extraterrestrial impacts to effect Earth? Learn what we’ve seen in history, and what is ...

An asteroid, 2024 YR4, once considered a potential Earth threat, now poses a 3.8% chance of hitting the Moon in 2032. Initially, NASA flagged a small possibility of Earth impact, but refined ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. It’s a long ...

On April 11, 2025, a large asteroid named 2023 KU, approximately 113 meters wide, will safely pass Earth at a distance of over one million kilometers. While posing no immediate threat, this close ...

You can follow her on X or Instagram at @melissafleura. NASA is closely monitoring a building-sized asteroid as it makes its closest approach to Earth today, among a group of five other space ...

Around 66 million years ago, a massive asteroid smashed into Earth, ending the reign of the dinosaurs. For nearly three decades, scientists have debated whether dinosaur species were actually ...

NASA's latest asteroid warning is about a space rock named 2023 KU that is hurtling towards Earth at a speed of 64,000 kilometres per hour. The 370-foot asteroid belongs to the Apollo group of ...

The asteroid that once had a small chance of striking Earth and now might slam into the moon resembles a spinning hockey puck, scientists said Tuesday. A team of astronomers used the Gemini South ...