La comète Tsuchinshan-Atlas, de son nom de code C/2023 A3, nous a déjà offert des images splendides.Astronaut Don Pettit successfully imaged #comet C/2023 A3 on 7 October at 9:27:48 UTC -- just seconds after local sunrise as the ISS was approaching the coast of Chile. At that time, the comet was...