ELI5: Explain Like I'm 5

Space mirror (climate engineering)

Okay, kiddo, let’s talk about space mirrors! Imagine you are standing outside on a hot summer day and the sun is shining down on you. It can get really hot, right? Well, scientists have something called a space mirror that they think could help with that.

A space mirror is exactly what it sounds like – a giant mirror in space. It’s not like a small handheld mirror that you use to fix your hair, though. This mirror is much bigger, about the size of a football field!

The idea is to put the space mirror in orbit around Earth, where it would reflect some of the sun's rays back into space before they can reach our planet. This would help cool the Earth down, which could be really helpful in slowing down global warming.

But, don't get too excited, kiddo. Space mirrors are still just an idea and there are a lot of things that we need to figure out before we can actually use them. For example, they would be really expensive to build and launch into space. Plus, we don’t know how they might affect the Earth’s weather patterns.

So, while space mirrors seem like a really cool idea, we still have a lot to learn and figure out before we can actually use them to help cool down the Earth.