An asteroid is expected to eventually hit Earth, highlighting the importance of preparing for such an event. This video ...

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

The space rock, known as "2026 AJ" and 40 feet in diameter, is hurtling toward our planet at around 20,500 miles per hour.

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

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 ...

For large Main Belt asteroids, that break-apart point was set at a spin period of about 2.2 hours – a hard limit suggested by ...

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 ...

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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 ...