A fascinating new theory suggests that our universe is expanding due to it colliding and absorbing smaller ‘baby universes’. Ever since 1929 when Edwin Hubble made the critical discovery that our universe was expanding, scientists have been debating its mechanisms with fierce intensity. The consensus theory was that ‘dark energy’ was behind the expansion, but a fascinating new theory suggests that it’s because our universe keeps colliding and absorbing new smaller ‘baby universes’. Is our universe constantly merging with ‘baby universes’?Whilst we’ve known for some time that our universe is ex...