2025 PN7 is a small, dim asteroid that appears to orbit Earth, according to EarthSky. Believed to be a piece of the moon that ...

Its stable orbit provides astronomers with valuable data on orbital mechanics, gravitational resonance, and the behaviour of ...

Driving a spacecraft around a planet isn’t anything like driving on a planet. A physicist explains orbital navigation.

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet unseen by telescopes for about 60 years, according to new research.Related video ...

It's largely agreed that the moon was created around 4.5 billion years ago when a protoplanet collided with early molten ...