Hubble observes an oddly organized satellite galaxy
A ndromeda III is one of at least 13 dwarf satellite galaxies in orbit around the Andromeda galaxy, or Messier 31, the Milky ...
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We Finally Know How Old The Stars Are, Say Scientists (And When We Collided With A Cosmic ‘Sausage’)
left by merging satellite galaxies, and star clusters scattered in their outskirts. In fact, the Gaia mission itself has revealed that our galaxy’s halo is full of debris from some massive dwarf ...