Interstellar comet 3I/ATLAS likely formed where its star's light couldn't touch it
Astronomers studying the interstellar comet 3I/ATLAS have discovered high levels of nitrogen, suggesting it formed in extremely cold conditions far from its host star. This finding provides new insights into the formation of planetary systems.
Why it matters
Understanding the chemical composition of interstellar objects helps scientists map the conditions of star systems beyond our own.
Solar System Comets Interstellar comet 3I/ATLAS likely formed where its star's light couldn't touch it News By Rahul Rao Published 14 September 2026 "Every one of these objects we study helps us understand a little more about how planets form around other stars."
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