How do you find a comet that could pose a threat to Earth but hasn't passed our planet in the last 200 years or more? You look for its footprint.

Deep Impact and Armageddon share a similar plot, but while Armageddon favored action, Deep Impact remains one of the most ...

The threat from near-Earth asteroid 2024 YR4 may have subsided, but discoveries of other hazardous space rocks are set to ...

In December 2024, astronomers in Chile spotted a new asteroid streaking through the sky, which they named 2024 YR4. What’s significant about this 100m-wide space rock is that it has a small chance of ...

For Alinda-class asteroids it does. Alindas follow their pumped-up orbit every four years, so properly aligned Alindas get a ...

which is why it's taken such a long journey -- and long time -- to swing by Earth again, according to The Planetary Society. A green comet will appear in the night sky this week, for the first ...

The likelihood of asteroid 2024 YR4 colliding with Earth keeps shifting, according to scientists. The object — which is large enough to destroy an entire city — has a 0.28% chance of colliding with ...

And if the comet's remains survive, it's expected to be visible from Earth again in about 600,000 ... Dry ice 'geysers' erupt on Mars as spring hits the Red Planet The diffuse coma in the lower ...