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 ...

CHICAGO -- A newly discovered asteroid roughly the size of an Olympic swimming pool has a "small chance" of colliding with Earth in 23 years, with a potential impact on Valentine's Day in 2046, ...

Add Yahoo as a preferred source to see more of our stories on Google. The Deep Space Network's Goldstone Solar System Radar took a series of 28 images of asteroid 1997 QK1 on Aug. 21, 2025. - NASA / ...

If an asteroid is on a collision course with the moon, what should humanity do? Try to nudge the space rock out of the way before it strikes? Obliterate it with a nuclear explosion? Such a cosmic ...

The label "space rock" feels like an understatement for what NASA just observed. A rock is something you throw at a window to get someone's attention. A rock holds down your picnic blanket to keep it ...