In short, asteroid 2024 YR4 went from breaking records for known threatening asteroids to being a near-zero threat. At some ...

Some asteroids are composed of rock, some iron, some are even made of precious metals, she said. “Think of a four-way stop, ...

Countless asteroids in our solar system, some close, some far — but did you know that some of these space rocks have names?

The number of known moons in our Solar System has been rising for centuries, but astronomers say it has probably peaked – for ...

Could a giant planet between Mars and Jupiter have doomed Earth? A new study suggests that small changes would have been ...

Astronomers believe that 14,000 undiscovered near-Earth objects like asteroids, large enough to ... but what is it made of? What size is it?" astronomer Nick Moskovitz said. Moskovitz says he's ...

A White House science advisor recently war-gamed with space agency heads worldwide to devise a planet-saving defense to an asteroid set to strike Earth - in a simulation.

An asteroid between about 130 and 300 ft. (40 and 90 meters) in diameter has been given a 2.3% chance of it hitting Earth on Dec. 22, 2032.

Chances an asteroid may hit Earth in 2032 have again risen, though the risk remains tiny, astronomers say. Here's what to know about 2024 YR4.

NASA's Lucy spacecraft, on its way to Jupiter's Trojan asteroids, has its next target ... but scientists think it might be made from material flung off Dinkinesh as Dinkinesh's rotation was ...