How did Andromeda’s dwarf galaxies form? Hubble Telescope finds more questions than answers
Dozens of dwarf galaxies swarming around the Andromeda Galaxy like bees have been caught on camera by the Hubble Space Telescope, which took more than a thousand orbits of the Earth to take enough images to get a full family portrait of Andromeda’s brightest satellites. The 36 dwarf galaxies are varied in their properties, and … Read more