Brian Cox - Is The Universe Infinite?

The universe might be infinite, which means it never ends, kind of like a really long hallway that goes on forever.

Imagine you're playing with building blocks. You stack them one after another, and no matter how high you go, there's always space for more. That’s what being infinite is like, the universe could just keep going and going without ever running out of room.

Think about your favorite playground. It has swings, slides, and maybe a sandbox. Now imagine that playground was infinite, you'd never run out of space to play, no matter how far you ran. You might even find new parts of the playground you’ve never seen before!

Scientists like Brian Cox are trying to figure out if our universe is like that big, never-ending playground or if it has an edge somewhere, kind of like a wall you’d bump into if you went far enough.

So they look at stars, galaxies, and even light from very far away. If the universe is infinite, it might feel like it's always expanding, just like when you blow up a balloon, and everything on it moves apart. The universe might be infinite, which means it never ends, kind of like a really long hallway that goes on forever.

Imagine you're playing with building blocks. You stack them one after another, and no matter how high you go, there's always space for more. That’s what being infinite is like, the universe could just keep going and going without ever running out of room.