Government2025

Spacecraft at Mars image interstellar comet 3I/ATLAS

When: 3 Oct 2025
Sources: 2 public sources

3I/ATLAS imaged by the HiRISE camera on NASA's Mars Reconnaissance Orbiter, Oct. 2, 2025 NASA/JPL-Caltech/University of Arizona, Public domain, via Wikimedia Commons

As 3I/ATLAS passed about 30 million km from Mars on Oct. 3, 2025, ESA's ExoMars Trace Gas Orbiter imaged its coma, and NASA's Mars Reconnaissance Orbiter, MAVEN and Perseverance also observed it, showing a fuzzy comet.

Sources

OfficialESA's ExoMars and Mars Express observe Comet 3I/ATLAS (opens in a new tab)European Space Agency / 2025-10-07
OfficialNASA's Mars Spacecraft Capture Images of Comet 3I/ATLAS (opens in a new tab)NASA / Jet Propulsion Laboratory / 2025-11-19

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