The universe is vast, beyond what we can truly comprehend. But how big is it, really? In this video, we explore the incredible size of the universe, from its observable limits to the theories that ...

Should the universe “choose” braneworld, it could mean that your senses (which perceive fewer dimensions) are keeping you ...

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

It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial and will fall apart on cosmic scales. If you’re on the surface of Earth—and I’m ...