NASA is closely monitoring a building-sized asteroid as it makes its closest approach to Earth today, among a group of five ...

Much of what scientists know about the early solar system comes from meteorites—ancient rocks that travel through space and survive a fiery plunge through Earth's atmosphere. Among meteorites, one ...

This is a still from an animation showing asteroid 2024 YR4 as it passes by Earth and heads toward its potential impact with the Moon. This 3D shape of the asteroid was determined from data obtained ...

The menacing asteroid that wiped out non-avian dinosaurs left a colossal marine crater in what's now the Yucatan Peninsula.

YR4 won't hit Earth, but scientists now estimate a 4% chance it could strike the Moon, possibly affecting space missions.

A “city killer” asteroid experts feared was on a crash course with Earth is now expected to miss the planet — but it still ...

The space rock is expected to zoom past our planet at a zippy 28,655 miles per hour, according to the space agency.

NASA’s James Webb Space Telescope took a close look at asteroid 2024 YR4, which was once thought to be on a potential ...

An analysis of North America’s fossil record for the 18 million years before dinosaurs disappeared suggests the prehistoric ...

The near-Earth asteroid 2025 BC10 will pass safely near our planet on Saturday (April 5). The Virtual Telescope Project will ...

Of all the asteroids that become meteoroids by striking Earth's surface, only 4% contain abundant carbon. But scientists know carbon-rich asteroids are commonplace in the cosmos—they just don't often ...