system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is space dark?

I don't understand how it is light on earth but when you go into space it gets dark. Shouldn't it get lighter the closer you get to the sun??
gpt
Space isn't dark. Space is *empty*. You only see colors because light from the Sun is reflecting off of stuff here on Earth, or stuff in the atmosphere. But space is basically just emptiness, so there's nothing to reflect off of, thus it just appears black.