3I/ATLAS Discovery

Subaru Telescope Reveals New Data on the Interior Composition of 3I/ATLAS

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May 5, 2026 • 50 views
Original source: Universe Today

The Subaru Telescope observed the interstellar comet 3I/ATLAS (C/2025 N1) on January 7, 2026 (UT), after it made its closest approach to the Sun. By observing colors in the coma around the comet, astronomers could estimate the ratio of carbon dioxide to water. This ratio is much lower than that infe...

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