Researchers are keeping an eye on the building-sized asteroid 2024 YR4, which has a 4 percent chance of hitting the moon seven years from now.

The 38-foot-wide space rock is projected to come to within just 123,000 miles of our planet, according to NASA.

YR4, its trajectory, and the science behind potential Earth impacts, explaining why close encounters don’t always mean danger ...

A building-sized asteroid had a 1-in-32 chance of hitting Earth at its peak, but astronomers soon found there was zero chance ...

At least 10 asteroids are set to make close approaches to Earth over a three-day window between December 18 and December 20, ...

Planetary defense efforts, formalized after the 1994 Comet Shoemaker-Levy 9 impact, aim to catalog and track hazardous near-Earth asteroids (NEAs) capable of causing significant damage, with mandates ...

NASA alerts Spain to a rare 2026 total solar eclipse and a “potentially dangerous” asteroid, urging authorities to prepare ...

Tryptophan, the essential amino acid behind the Thanksgiving myth that eating turkey can make you sleepy, has been found to exist on Bennu, a small asteroid that swings by our planet about every six ...