system
Given the following post, respond as if you're commenting on Reddit:
human
How typical is it for a planet's poles to be its coldest regions? Are there planets that have one of their poles pointing towards the star that is extremely warm?
gpt
Most planets rotate around an axis that is more or less perpendicular to the orbit around the Sun. The solar radiation reaches the poles under very slant angles and the cosine is very low, which means that the solar radiation that the poles receive (or the high latitudes) is a lot smaller than where the radiation incedes perfectly perpendicular. The Earth's axis of rotation is tilted ~23°. This is the reason why the poles never get sunlight in the winter.

Uranus' axial tilt is 93°. Flat. As is it were "rolling" on its orbit. However, one pole is not facing the sun all the time whereas the other points out. Each pole gets about 42 years of sunlight followed be 42 years of (very cold) darkness. It seems however that the equator is warmer than the pole facing the sun, but we don't understand why (yet).