Spotted, a Dark Matter creche and its monstrous baby galaxies

A creche of monstrous baby galaxies, swaddled in dark matter and billions of light years from Earth, could help answer questions about how the known universe formed. Monstrous galaxies, rapid stellar incubators, are no longer a feature of the universe, though ten billion years ago they pumped out new stars up to thousands of times the rate of current production. … Continue reading