Since comet 3I/ATLAS, the third known interstellar object, was discovered on 1 July 2025, astronomers worldwide have worked to predict its trajectory. ESA has now improved the comet’s predicted location by a factor of 10, thanks to the innovative use of observation data from our ExoMars Trace Gas Orbiter (TGO) spacecraft orbiting Mars.

Source: https://www.esa.int/Space_Safety/Planetary_Defence/ESA_pinpoints_3I_ATLAS_s_path_with_data_from_Mars