News > What is the multiverse—and is there any evidence it really exists?

What is the multiverse—and is there any evidence it really exists?

This image shows the cosmic microwave background—the oldest light in the universe, released shortly after the big bang. This barrier marks the edge of the observable universe, though scientists have come up with a few theories about what may lie beyond. What lies beyond the edges of the observable universe? Is it possible that our universe is just one of many in a much larger multiverse?