This new Hubble Space Telescope image represents just half of a planned ... or have only recently begun forming them again ...

Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...

This new Hubble Space Telescope image represents just ... or have only recently begun forming them again after they entered our galaxy's sphere of influence, where gravitational tidal forces ...