The True Scale of IC 1101… And Why Nothing Should Be This Big

Take the entire Milky Way, all 200 billion stars, all 100,000 light-years of it, and drop it inside this galaxy. It would drift through like a grain of sand through a swimming pool. IC 1101 contains up to 100 trillion stars. And our best models of galaxy formation can barely explain how it got this big. IC 1101 sits at the gravitational center of a galaxy cluster a billion light-years away, and it has been doing one thing for almost the entire history of the universe: eating. Every galaxy that drifted too close was slowly pulled in, torn apart, and absorbed. The faint glow surrounding it for millions of light-years isn't a halo, it's a graveyard. The mixed remains of every galaxy it ever consumed, still orbiting the thing that destroyed them. This is the full story of the largest galaxy ever measured, what type of object it actually is, the one-way physics that feeds it, why astronomers checked their arithmetic twice, and the genuine scientific tension over why anything in the universe should be this big. It is still growing right now. We’re also live on Spotify 🎧 https://open.spotify.com/show/033Dogu... Sources & Further Reading: NASA Science. Galaxies: Types, Formation, and Evolution. https://science.nasa.gov/universe/gal... ESA/Hubble. Galaxy Classification and Imaging. https://esahubble.org Uson, J.M., Boughn, S.P. & Kuhn, J.R. (1991). "The Central Galaxy in Abell 2029." The Astrophysical Journal, 369, 46. https://doi.org/10.1086/169736 Mo, H., van den Bosch, F. & White, S. (2010). Galaxy Formation and Evolution. Cambridge University Press. Chandrasekhar, S. (1943). "Dynamical Friction. I. General Considerations: the Coefficient of Dynamical Friction." The Astrophysical Journal, 97, 255. https://doi.org/10.1086/144517 NASA/IPAC Extragalactic Database (NED). https://ned.ipac.caltech.edu #IC1101 #LargestGalaxy #Astronomy #SpaceDocumentary #Cosmology #GalaxyClusters #DeepSpace