While a collision between two universes may be unlikely to happen over the course of the lifespan of one single single species, this is still interesting to ponder. Furthermore, there is some evidence to suggest that one or more of these collision have taken place in the very distant past.

What happens if 2 universes collide?

For the first time, the theorists have a testable prediction: Collisions with nearby universes could have left a mark in the cosmic microwave background, the fossil radiation of the big bang. ... Fractions of a second after the big bang, our universe is thought to have expanded exponentially in a phase called inflation.

How often do universes collide?

The Big Bang, they say, was caused when our brane crashed against a neighboring one. The violence of the collision would have flooded both universes with energy and matter. These collisions should repeat every trillion years, each time triggering a new Bang and a new universe.