system
Given the following post, respond as if you're commenting on Reddit:
human
I just read that space has a near absolute zero temperature but wouldn't a vacuum technically not have a temperature?

Temperature is a measure of the motion of particles in a mass and space should be a vacuum which has no particles. Am I missing something?
gpt
Space is not a vacuum.

> Outer space is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles: predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, and neutrinos. Theory suggests that it also contains dark matter and dark energy. In the space between galaxies, matter density can be as low as a few atoms of hydrogen per cubic meter. The baseline temperature, as set by background radiation left over from the Big Bang, is only 3 Kelvin; in contrast, temperatures in the coronae of stars can reach over a million Kelvin.