Asteroids

A tiny asteroid will orbit around our planet for 53 days from the end of September.

The gigantic asteroid 2024 ON, about the size of a skyscraper, will fly close to Earth next Tuesday, missing our planet by 2.6 times the distance between Earth and the moon.

New simulations reveal that there is an extremely small chance that the "city-killer" asteroid Apophis could be nudged onto a collision course with Earth by another asteroid before it flies past our planet in 2029.

On Wednesday (Sept. 4), astronomers spotted a never-before-seen asteroid, 2024 RW1, around eight hours before it entered Earth's atmosphere. The "harmless" space rock quickly burned up as predicted, creating a bright green streak across the night sky before spectacularly exploding.

A new study suggests that millions of tiny space rock fragments, which were ejected from the 2022 collision between asteroid Dimorphos and NASA's DART spacecraft, may be on a collision course with Earth and Mars.

Scientists have uncovered the "genetic fingerprint" of the dinosaur-killing Chicxulub impactor, potentially revealing the fateful rock's origins in the outer reaches of our solar system.

A new James Webb Space Telescope analysis of the giant, metal-rich asteroid Psyche reveals signs of hydration in the form of rust. This could help pin down the mysterious rock's origins.

The European Space Agency's Gaia space telescope has found evidence of more than 350 previously unknown moons orbiting asteroids within our solar system.

NASA's asteroid-hunting NEOWISE space telescope will soon plunge into Earth's atmosphere and burn to bits. Here's a look back at its epic mission that defied all expectations.

New research finds why some asteroids have weird, watermelon-shaped moons trapped in orbit around them, contrary to what typical asteroid formation theories predict.