The discovery renews the debate about how Earth got its oceans. If comets like 12P/Pons-Brooks carried water to our young ...

When NASA's Nancy Grace Roman Space Telescope launches in October 2026, it won't just be peering into the distant universe to ...

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

Brooks, the "devil comet," reveals that its water vapor possesses a chemical composition nearly identical to Earth's oceans.

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 ...

Alien hunting Harvard astronomer Avi Loeb continues to rail against the idea that our newest interstellar is merely a comet.

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 ...

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.