The fear, of course, is that one will go undiscovered in the sky until it's too late and then hit the Earth. While the actual ...

is that one will go undiscovered in the sky until it's too late and then hit the Earth. While the actual risk is incredibly small, Hemmelgarn said, the impact of even a small comet could be ...

This asteroid, named 2024 XA1, is only the 11th object we have ever managed to detect before it entered our planet's atmosphere.

An asteroid was pegged to hit Earth “imminently,” according to ... What’s the difference between an asteroid and a comet? An asteroid is a small, inactive body that orbits the sun, typically ...

Designated as COWECP5, the asteroid burned up in the atmosphere as it streaked across the Eastern Siberia sky around 11:14 a.m. ET on Tuesday.

Where do Earth's oceans come from? The debate on whether water may have been originally delivered to our planet by comets striking its surface has reopened after a new groundbreaking study.