Could There Be Infinite Universes Just Like Ours?

Scientists have discovered hints that our universe might not be alone—there could be countless other universes existing right alongside ours in something called a "multiverse" [multiple universes that exist together]. Imagine if every choice you made created a whole new universe where you made a different choice! While we can't visit these other universes yet, some of the smartest physicists in the world think this could actually be real.