What happened to the Milky Way's sister galaxy? | astrobites — Aug 2, 2018 Title: The Andromeda galaxy's most important merger about 2 billion years Our own Milky Way is guilty of eating its smaller siblings and will 


Our Milky Way Galaxy Used to Have a Huge Sibling, Until — Jul 26, 2018 This is certainly true of the Andromeda Galaxy (aka. M31 It was shocking to realize that the Milky Way had a large sibling, and we never knew