ESA tracks rare interstellar comet
Astronomers have confirmed the discovery of a rare celestial visitor: a comet from beyond our Solar System. Named 3I/ATLAS, this newly identified interstellar object is only the third of its kind ever observed, after 1I/ʻOumuamua in 2017 and 2I/Borisov in 2019.
https://www.esa.int/Space_Safety/Planetary_Defence/ESA_tracks_rare_interstellar_comet