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

ALMA observed water in Halley-type comet 12P/Pons-Brooks that was similar to Earth’s oceans, indicating the role of comets in ...

While observing the Halley-type comet 12P/Pons-Brooks with ALMA and NASA's Infrared Telescope Facility, researchers ...

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.

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

The mysterious object named 3I/ATLAS that came from outside our solar system and is hurtling towards the sun, has once again ...

A mystery object tearing towards Earth at break-neck speed has raised fears that aliens are on their way here.

Chemical profiling traces the source of water in one of the brightest known comets to keep returning to the Solar System.

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

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

In 2024, scientists studying ancient sediments in the eastern United States reported signs of a comet exploding in Earth’s ...