On 3 October, ESA’s ExoMars Trace Gas Orbiter (TGO) turned its eyes toward interstellar comet 3I/ATLAS as it passed close to Mars. Comet 3I/ATLAS is the slightly fuzzy white dot moving downward near the middle of the image. Despite not being designed to capture something so far away, ExoMars TGO revealed the coma of gas and dust surrounding the icy-rocky nucleus. Image via ESA/ TGO/ CaSSIS.
