CNN May 01, 2026 • 17:00

3I/ATLAS originated from place much colder than our solar system - CNN

By Ashley Strickland

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

Astronomers using radio telescope observations to get an inside look at an interstellar comet have gleaned new insights into when and where the celestial object formed.
The comet, named 3I/ATLAS, ga… [+6635 chars]

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3I/ATLAS originated from place much colder than our solar system - CNN

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