Messier 101 and a (likely) supernova impostor
Messier 101 surely is one of the most beautiful spiral galaxies out there. Because of its relative proximity (about 20 millions of light years), its face-on geometry and the elegance of its arm, the...
Messier 101 surely is one of the most beautiful spiral galaxies out there. Because of its relative proximity (about 20 millions of light years), its face-on geometry and the elegance of its arm, the...
– Comets C/2025 A6 Lemmon & C/2025 R2 SWAN 2025 flyby (24 Oct. 2025)