system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How we can see stars and galaxies literally billions of light years away but are just discovering another planet in our solar system?
gpt
Imagine you're standing in the middle of a pitch black gymnasium.  Somewhere, about ten feet away from you is a single grain of sand floating in the air.  At the same time, about 100 feet away from you is a lit candle.  

Which one do you think you'd be able to find first?