This universe is getting to be a lot. As if troubling political trends, climate change, and a rising billionaire class weren’t bad enough, the space beyond our little blue planet is equally full of ...

Observations show the universe appears flat, yet its true size and global shape beyond the observable horizon may remain forever unknown.

What if there are other universes, just like ours? With an infinite number of Earths? With uncountable versions of you? And what if we don’t have to look too far to find them? Maybe a mirror version ...

Interest in the multiverse theory, suggesting that our universe is just one of many, spiked following the release of the movie "Everything Everywhere All At Once." The film follows Evelyn Wang on her ...

Here’s what you’ll learn when you read this story: Our universe has cracks, linking us to others, a quantum physics theory says. This opens the door to another version of you existing in some other ...