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 ...

Water on the Devil Comet matches Earth’s, supporting the idea that comet impacts delivered life-giving water to young Earth.

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 ...

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

The comet's approach toward Earth coincides with a total solar eclipse on April 8. Around that time, 12P/Pons-Brooks will be at or near perihelion, the point during orbit when it's closest to the sun.

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

The bright K2 comet — previously the farthest active comet ever spotted — approaches the Earth on July 13 and 14. Here's what it is and how to see it.