ELI5: Explain Like I'm 5

Measure space

Okay kiddo, so have you ever tried to measure how tall you are or how long your toy car is? Well, that's kind of what measure space is all about.

You see, measure space is a way for us to figure out how big or small things are in the world around us. Just like how we can measure our height or the length of our toy car with a ruler or a tape measure, we can use special tools called measuring techniques to figure out how big or small things are in space.

But wait, what is space? Space is basically everything around us, everything we can see and touch, and everything we can't see or touch like stars and planets that are really far away.

Now, the thing with measuring space is that it's not always easy to do. You can't just use a ruler or a tape measure to measure how far away the moon is from Earth, for example. Instead, scientists use things like radar and telescopes to help them measure distances in space.

They also use something called mathematics to help them make calculations and figure out things like the size of planets or the distance between stars.

So that's measure space in a nutshell, kiddo. It's all about figuring out how big or small things are in the world around us, even if they're really, really far away!