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Interstellar Comets

3I/ATLAS 3I/Atlas Borisov 3I/2025 N1 (ATLAS) 2I/Borisov 3I/ATLAS Properties Comet Borisov C/2025 N1 (ATLAS)

Mars Orbiters Capture Closest Views of Interstellar 3I/ATLAS as UV Data Reveal Intense Water Outgassing

Forthcoming perihelion observations, including ESA's JUICE campaign, are expected to clarify its origin.

ESA Mars Orbiter Captures Closest View of Interstellar Comet 3I/ATLAS

Interstellar Comet 3I/ATLAS Slips Behind the Sun as New Study Finds Unusual Polarization

New Analysis Says Interstellar Comet 3I/ATLAS Is Far Larger Than First Estimated

3I/ATLAS Shows Growing Tail and Rapid Brightening as Evidence Favors a Natural Comet

NASA Reaffirms 3I/ATLAS Is a Natural Interstellar Comet