Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles ...

According to this story, when the solar system was just getting started, a Mars-size protoplanet named Theia slammed into the proto-Earth. Artwork of the young Earth-moon system. The Earth had ...

This last collision, also known as the “moon-forming impact,” was so large that—in addition to adding lots of material to the Earth—there was enough energy to vaporize some of the rock and metal from ...

A huge asteroid that was briefly feared to strike Earth now has a nearly 4% chance of smashing into the moon, according to ...

Before Earth and the Moon, there were proto-Earth and Theia (a roughly Mars-sized planet). The giant-impact model suggests that at some point in Earth's very early history, these two bodies collided.

YR4, first discovered in December 2024, triggered a first-ever notification from the International Asteroid Warning Network ...

New Webb Telescope data confirms that asteroid 2024 YR4 poses no threat to Earth during its 2032 flyby. As for the Moon, not so much.

Before the Earth and Moon, there was a proto-Earth and Theia. Museum planetary science researcher Prof Sara Russell explains the origins of Earth's closest companion. Stars that go supernova are ...

Soil and rocks returned from the moon's far side suggest it may be drier than the side constantly facing Earth ...