Asteroids

Departing on Monday (Nov. 25), Earth's recent "mini-moon" asteroid 2024 PT5 didn't stick around for Thanksgiving, but don't be sad. It will be back... but will it ever be a second moon again?

Samples collected from the near-Earth asteroid Ryugu have revealed clues about a primordial magnetic field that helped asteroids, planets and moons grow in our solar system.

A small asteroid burned up in Earth's atmosphere off the coast of California just hours after being discovered and before impact monitoring systems had registered its trajectory.

When the 'God of chaos' asteroid Apophis makes an ultraclose flyby of Earth in 2029, our planet's gravity may trigger tremors and landslides that totally change the asteroid's surface.

Temporary flows of saltwater could explain mysterious gullies and fan-shaped deposits spotted across asteroid Vesta.

The destructive power of asteroids is undeniable — just ask the dinosaurs. New research suggests a huge space rock that struck Earth over 3 billion years ago may have benefitted early life.

An illustration of a cosmic airburst event.

Saturn has finally joined the solar system's other giant planets in possessing a Trojan asteroid, but it may have stolen it. The bouncing asteroid seems to have originated in the Kuiper belt.

Scientists say they've uncovered where the vast majority of Earth's meteorites came from.

The Taurid Meteoroid Stream, responsible for two November meteor showers and possibly the Tunguska and Chelyabinsk impacts, probably doesn't hide a civilization-killing asteroid, a new study finds.