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Tuesday, October 20, 2026Updated 15:44 UTC

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The sun may have stripped away meters of interstellar comet 3I/ATLAS

Source: Phys.org · Oct 20, 2026 12:10 UTC

White telescope dome of the Otto Struve Telescope at McDonald Observatory in Texas — File photo Carol M. Highsmith / Library of Congress · Public domain · Source

The Quick Take

The interstellar comet 3I/ATLAS brought material from another planetary system within reach of our telescopes, but reading its chemistry poses a problem. Energetic particles encountered during its journey through space may have changed its outer layers, so how much of what astronomers detect still reflects the comet's birthplace?

Read the full story at Phys.org

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