Milky Way once had a massive sibling galaxy but it was shredded by our closest galactic neighbor 2 billion years ago. Although the galaxy has been destroyed and consumed, its presence can be detected...
Astronomers Discover Milky Way’s Long-lost Sibling
Milky Way once had a massive sibling galaxy but it was shredded by our closest galactic neighbor 2 billion years ago. Although the galaxy has been destroyed and consumed, its presence can be detected...