Asteroid 2024 YR4 was estimated at up to 300 feet across, with early calculations giving it a 1-in-45 chance of striking ...

There was once an asteroid big enough to wipe out the dinosaurs, but could a meteor ever knock Earth out of orbit? Although a ...

On Friday, April 13, 2029, asteroid Apophis will sweep just 19,400 miles above Earth — closer than geostationary satellites — and be visible to the naked eye.

Apophis's pass in 2029 will allow scientists to study an asteroid of this size up close. In addition, if conditions allow, it ...

NASA's DART spacecraft collided with the asteroid Dimorphos at a speed of approximately 6 km/s. This was the first experiment ...

A Chinese-led international research team has identified the fastest-rotating near-Earth asteroid known to date and improved ...

A giant asteroid named Apophis is set to make its unusual close encounter to Earth in exactly 900 days. On Friday, April 13, ...

The asteroid that killed the dinosaurs may have set the stage for ants to conquer the planet, with a surprising boost from ...

New simulations reveal the one option left when warning time runs out—and it’s nuclear.

Tiny samples from asteroid Bennu are rewriting scientists' understanding of how our Solar System formed. New evidence suggests that Bennu was born where material from the inner and outer Solar System ...

NASA's Planetary Defense Coordination Office (PDCO), based in Washington, D.C., coordinates the agency's work to identify and ...

Triceratops, and all other non-avian dinosaurs vanished. Only one branch of the dinosaur family tree survived—birds. But what ...