Collision between young Earth and Mars-sized planet might be why we’re all here today. By Mike Wehner. Published Jan 23rd, 2019 7:06PM EST. If you buy through a BGR link, we may earn an ...

Most scientists agree that a major collision 4.5 billion years ago with a protoplanet named Theia formed the Earth-Moon system. Now, a new study from the University of Nevada argues that, out of ...

The Earth and Moon system we see today was formed when Theia, an ancient planet about the size of Mars, collided with Earth about 4.5 billions years ago. This is how old Earth was 100 million ...

Earth lives in a shooting gallery, with small and large rocky bodies in abundance in our solar system. Are we in danger of ...

Astronomers have announced the discovery of a monumental interstellar object, designated 3I/Atlas, believed to be the largest ...

A recent study indicates a small chance that Earth could be ejected from our solar system due to passing stars. Simulations ...

The largest Martian meteorite ever found on Earth is being auctioned off later this month and could fetch up to $4 million.. One of only 400 of its kind ever found, the hunk of red-hued space rock ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...