A recent study published in Nature Astronomy has delivered the clearest evidence yet that some comets carried Earth-like ...

Water found on Comet 12P/Pons-Brooks is "virtually indistinguishable" from water found on Earth. A "devil" comet's water is ...

For centuries, people have wondered where Earth’s vast oceans came from. Our planet didn’t form with much water, yet today it ...

Our new results provide the strongest evidence yet that at least some Halley-type comets carried water with the same isotopic ...

Comet 12P/Pons Brooks shows a D/H water ratio matching Earth’s oceans, revealed through ALMA and NASA IRTF observations.

An interstellar comet spotted by NASA is headed for our solar system, showing up near Earth later this year, but it's another ...

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

Avi Loeb said bases this hypothesis on a July 21 image captured by the Hubble Space Telescope and shared by NASA.

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

Mankind must decide how it’s going to deal with contact with extraterrestrials — and time could be running out, one expert ...

These strange objects could explain how water arrived on Earth, but may also be a previously unrecognised threat to our ...

Hubble has taken the clearest image to date of the interstellar comet 3I/ATLAS, which is racing through our solar system at ...