You might think that our universe is HUGE, but have you ever considered that it might not be the only universe in existence? In this video, the folks from Life Noggin explores the idea of a multiverse.
The multiverse (or meta-universe) is the hypothetical set of finite and infinite possible universes, including the universe in which we live. Together, these universes comprise everything that exists: the entirety of space, time, matter, energy, and the physical laws and constants that describe them.