Dr Ranga-Ram Chary examined the noise and residual signals in the cosmic microwave background left over from the Big Bang (pictured) and found a number of scattered bright spots which he believes may be signals of another universe bumping into our own and causing collisions of alternative universes should be possible.
Theories conclude that our universe is like a bubble among many.

Source

http://www.higherperspectives.com/parallel-universe-1445719717.html?xrs=RebelMouse_fb#