On October 3, ESA’s ExoMars Trace Gas Orbiter (TGO) turned its eyes towards interstellar comet 3I/ATLAS as it passed close to Mars. It looked towards the interstellar interloper from 30 million km away during its closest approach to the Red Planet. ExoMars TGO used its dedicated Colour and Stereo Surface Imaging System (CaSSIS) to capture the comet, an instrument normally used to photograph the bright surface of Mars from a few hundred to a few thousand kilometers away. Comet 3I/ATLAS is the