Scientists have proposed a shocking new theory for the origin of the moon, and their calculations suggest Earth once had a secret world hiding right next door. Astronomers believe that the moon was ...

The recently spotted asteroid 2025 PN7 appears to be the source of the rumor mill about Earth's supposed second moon. Earth has several quasi-moons that get their name due to the fact that they ...

The Moon has always been a steady presence in the night sky, but recent observations are forcing scientists and sky-watchers to look again at what it is quietly enduring. Irish astronomers reported a ...

It was long thought, up until recently, that asteroids and comets delivered Earth's oceans during the very early Solar System formation. Matching this.