An international team of researchers have considered the late Stephen Hawking’s 1974 theory of the existence of primordial black holes, born shortly after the Big Bang, and his speculation that they could make up a large fraction of the elusive dark matter scientists are trying to discover today.
A long time ago gravity drew two galaxies together into the gorgeously chaotic state we see above with NGC 6052. Stars from within both of the original galaxies now follow new trajectories caused by the new gravitational effects.