The astronomer used the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile to make the observations.
Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system. But it may not be around much longer. The otherworldly visitor to ...
The Subaru Telescope achieved first light in January 1999 and entered its 27th year of operation in 2026. In March 2025, ...
Astronomers analyzed the vapors coming off the comet when it neared the sun and found it had a lot of "heavy" water. That ...
Learn more about the interstellar traveler, Comet 3I/ATLAS, and what researchers know about its place of origin.
The presence of deuterium, an isotope of hydrogen, in 3I/ATLAS suggests the interstellar comet formed in a much colder place ...
Long before 3I/ATLAS slipped through the inner solar system, its water had already recorded the kind of place it came from.
The interstellar comet 3I/ATLAS was the third object ever discovered in our solar system that originated from another star system. Despite a viral conspiracy theory, NASA officials have repeatedly ...
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