From bubble universes to a mirror world where time runs backwards, the concept of a multiverse is聽one of the weirdest ideas in science.聽But it might just be true.聽Could the reality we experience be one of many?聽Are there parallel versions of ourselves?聽And could alternative universes experience聽different laws of physics and maybe even extra dimensions?聽聽In this聽episode of聽Science with Sam, we explain the science of the multiverse.