The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get ...

The Earth has a new follower. Astronomers recently discovered a tiny quasi-moon that they believe has been orbiting the sun alongside the Earth for decades. The new quasi-moon, which is being called ...

Earth has a newly discovered—albeit temporary—companion in its journey around the sun. In research published this month in ...

For more than sixty years, a tiny asteroid has been moving in step with Earth, hidden from view until recently. Astronomers ...

Researchers from Spain have discovered a kind of second moon orbiting around Earth. Known as Apollo asteroid 2025 PN7, it was ...

Earth is the only planet in our solar system with a single moon, making it a rare phenomenon for a planet of its kind.

A small asteroid has been quietly following Earth’s orbit for decades—unseen, unbothered and, until recently, completely ...

Everyone who has ever lived on Earth has been well-aware of the moon, but it turns out Earth also has some frequent temporary ...

Kevin France, a professor of astrophysics at the University of Colorado Boulder, discusses the Habitable Worlds Observatory, ...

The asteroid known as 2024 YR4 is out of sight yet still very much on scientists’ minds. The building-sized object, which initially appeared to be on a potential collision course with Earth, is ...