A Harvard University astrophysicist has suggested the incoming interstellar object 3I/ATLAS could be an alien probe. But NASA ...

The 3I/ATLAS, which was first spotted on July 1, has the fastest velocity of any solar system visitor to date, NASA says. The ...

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to ...

A massive comet trail may have caused climate upheaval on Earth more than 12,000 years ago, sparking the Younger Dryas.

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...

Mankind must decide how it’s going to deal with contact with extraterrestrials — and time could be running out, one expert warned — after he sounded the alarm that an incoming ...

Metallic beads in Arctic mud point to a comet impact that may have triggered the Ice Age 12,800 years ago, challenging ...

Scientists estimate the object to be more than 12-miles-wide, speeding at 37 miles-per-second, relative to the sun.

Researchers reveal how cosmic airbursts strike Earth without craters - and why they may be more common and destructive than ...

This new measurement suggests some comets — particularly those such as 12P/Pons-Brooks — could indeed have delivered water, and possibly other life-essential elements, to a young Earth.

I/ATLAS is just the third recorded interstellar object to enter the solar system. However, the scientific consensus is that ...

NASA’s Hubble Space Telescope has snapped images of a recently discovered interstellar visitor hurtling through our solar ...