What Limits Exist?

Have you ever wondered why there are still limits to what telescopes can show us? Telescopes, no matter how powerful, face certain constraints. For instance, Earth's atmosphere can blur images, just like how heat waves make things look wiggly in the distance on a sunny day. Light pollution from cities can also make it hard to see faint stars. Then there's the size of the telescope: larger telescopes can see dimmer objects, but they are harder to build and maintain. Imagine having a super-large telescope in your backyard — it's not very practical, right? So, what does all this mean for what we can see in the universe?