system
Given the following post, respond as if you're commenting on Reddit:
human
Where does heat go in space?

Imagine you had a bottle of water (somehow not exploding in a vacuum), would it cool down after a while? and if so, how does it lose its heat?
gpt
The main way to lose heat in space is through the light which is emitted by any object which has a temperature above 0 kelvin (absolute 0). For temperatures below several hundred degrees Celsius, this light is mostly emitted in infrared and not visible with the naked eye.