Hubble reveals insights into Andromeda's satellite galaxies

NASA's Hubble Space Telescope has provided new insights into the Andromeda galaxy and its 36 satellite galaxies. Researchers created a 3D map and found that Andromeda's history is more turbulent than the Milky Way's, likely due to a past collision with another galaxy. The study revealed that many of Andromeda's satellites orbit in the same plane and direction, a surprising pattern that researchers do not yet understand. Additionally, some dwarf galaxies continued forming stars longer than expected, challenging previous computer simulations. Astronomers plan to track the movements of these dwarf galaxies using Hubble and the James Webb Space Telescope in the coming years. This research aims to deepen understanding of galaxy evolution and Andromeda's complex history.