system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why do astronomers take pictures of things in different wavelengths?
gpt
You can think of different wavelengths as different colors. The human eye can only see a small range of wavelengths of light - from around 390 nm to 700 nm - but there's light with wavelengths smaller than 390 nm (ultraviolet) and light with wavelengths larger than 700 nm (infrared).

Just as there are a lot of details in the world that you can only see if you look for specific colors, there are lots of details in the universe that you can only see when you look at different wavelengths.