New research suggests as many as 100 previously unseen satellite galaxies could be orbiting the Milky Way. This discovery could change our understanding of dark matter and galaxy formation!
A new study reveals that Andromeda's satellite galaxies are arranged in a strange, lopsided manner, challenging our understanding of galaxy formation and dark matter's role in the universe.
NASA's Hubble reveals a stunning 3D map of Andromeda's satellite galaxies, challenging our understanding of galaxy formation and hinting at a tumultuous cosmic history of collisions and star formation.