Greenland's only US military base is (quietly) getting a massive upgrade Trump is threatening to attack a country that ...

A mile-wide asteroid known as 2005 UK1 will safely pass Earth on Jan. 12, 2026, at 32 times the moon’s distance, posing no ...

Would we suffer the same fate as the dinosaurs? What if this football-field-sized space rock didn’t make that turn? What if ...

On hearing the words "city killer" and "asteroid" in the same sentence, you'd be forgiven for thinking something bad is about to happen. But not to fear. Although an asteroid with the potential to ...

An asteroid hit Earth's atmosphere last Friday. Astronomers were able to precisely determine where it was going to strike. And despite seeing it just two hours before impact, its small size meant it ...

Scientists have discovered a “record-breaking” asteroid that is nearly the size of eight football fields. The object, known ...

Measuring around 41 feet in diameter, the asteroid is speeding towards our planet at more than 38,500 miles per hour.

Of Meteors and Buckyballs Aired February 23, 2001 - 7:40 a.m. ET . THIS IS A RUSH TRANSCRIPT. THIS COPY MAY NOT BE IN ITS FINAL FORM AND MAY BE UPDATED ...

The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the details of their end have remained a matter of debate since the impact crater ...