Researchers are keeping an eye on the building-sized asteroid 2024 YR4, which has a 4 percent chance of hitting the moon seven years from now.

The 38-foot-wide space rock is projected to come to within just 123,000 miles of our planet, according to NASA.

At least 10 asteroids are set to make close approaches to Earth over a three-day window between December 18 and December 20, ...

Picture this. You're sitting at breakfast, scrolling the news, when suddenly headlines scream that a space rock the size of a ...

The educator and broadcaster on the search for life beyond Earth, what we might gain from mining on the Moon — and how to divert a killer asteroid ...

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars ...

Our Solar System contains tens of thousands of potentially dangerous asteroids that could wipe out an entire city, or worse. In Washington, a NASA office is leading efforts to spot and neutralize ...