When NASA's DART spacecraft slammed into the asteroid moon Dimorphos in September 2022, it didn't just change the asteroid's ...

Asteroid 2024 YR4 has a 0.0017% chance of hitting Earth, but media reports too often ignore the unlikelihood of impact in reports of near-Earth asteroids, a Tucson astronomer says.

While Asteroid 2024 YRA has a minute chance of hitting Earth in seven years, the co-lead of NASA's DART mission says a small spacecraft could deflect the space rock's course.

Asteroids colliding with Earth might seem farfetched, but the planetary threat is real. Just this year news broke of an asteroid with a 1%–2% chance of a fatal collision occurring in 2032. While ...

If the asteroid does hit the Moon, the released energy might be the equivalent of 6.5 megatons of TNT-more than 400 times the Hiroshima bomb (0.015 megatons). A 1-kilometer-wide crater would ...