The astronomer used the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile to make the observations.

ALMA reveals unusual “alien” water in interstellar comet 3I/ATLAS, showing it formed in an extremely cold, distant star ...

A comet tearing through the inner solar system at roughly 58 kilometers per second formed between 10 and 12 billion years ago ...

Astronomers have discovered that the interstellar comet 3I/ATLAS originated in conditions far colder and older than our solar system, offering new insights into its formation.

The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place ...

A comet born around another star is carrying water unlike anything ever measured in our solar system. Observations of ...

Astronomers analyzed the vapors coming off the comet when it neared the sun and found it had a lot of "heavy" water. That ...

Scientists have discovered that interstellar comet 3I/ATLAS, a rare visitor to our solar system, likely originated from a ...

Scientists have found unusually high heavy water levels in interstellar comet 3I/ATLAS. The finding suggests it formed in a ...

UFO disclosure has been all the buzz on social media, amid the death or disappearance of at least 12 scientists in the USA ...

Learn more about the interstellar traveler, Comet 3I/ATLAS, and what researchers know about its place of origin.