Using the Atacama Large Millimeter/submillimeter Array (ALMA), scientists have discovered that the interstellar invader comet ...

New observations of the interstellar comet 3I/ATLAS include the first measurement of the abundance of deuterated water ...

Comet 3I/ATLAS continues to be found exceptional. The third known interstellar object is a weird comet, with many properties ...

Comet 3I/ATLAS, an object from another star that was found speeding through our solar system last summer, is now fading from ...

The water coming off comet 3I/ATLAS is not just unusual. It is extreme. Astronomers studying the interstellar comet found ...

An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

Interstellar comet 3I/ATLAS is now on its way out of our solar system, never to return. The comet was only the third-ever ...

3I/ATLAS is now sailing away from Earth and our solar system itself, but astronomers have already learned a wealth of ...

The comet that rambled past us from another star last year likely originated in a cold, isolated corner of the galaxy that had yet to gel into its own solar system, astronomers reported Thursday.

An ancient comet, 3I/Atlas, which journeyed through our solar system last year, is believed to have originated in a ...

University of Michigan astronomers have found that the interstellar comet 3I/ATLAS contains 30 times more "heavy water" ...

Interstellar comet 3I/ATLAS showed changing chemistry near the Sun, revealing clues about its internal structure and offering ...