Asteroid 2024 YR4 will not hit Earth, but it has forced planetary defense experts to confront a different kind of worst case: a significant chance that a “city killer” rock could slam into the Moon ...

Asteroid 2024 YR4, a celestial body roughly the size of a small building, has captured global attention due to its potential to strike Earth in 2032. Although the probability of impact remains low, ...

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 ...

Earth has one true moon, but there are also several asteroids known as quasi-moons that are in orbit with the sun. A newly discovered asteroid, 2025 PN7, is the seventh confirmed quasi-moon that ...

You may have heard a lot of online chatter about Earth's two moons recently, but that doesn't quite get the discovery right. Earth still only has one true natural satellite — our 2,159-mile-wide moon ...