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

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

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

New research has uncovered compelling evidence that water from a comet is strikingly similar to that found in Earth's oceans, ...

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

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

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

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

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

The work indicates that the picture of extraterrestrial water being delivered to Earth is complex. Maybe not all comets, but ...

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

Each of Comet Izumi’s unknown orbits from the Oort Cloud is speculated to take just under a billion years. The comet has, ...