system
Given the following post, respond as if you're commenting on Reddit:
human
Does sound travel in absolute 0 temperatures?

We learned in physics that the lower the temperature of the air , the slower sound will travel through it , so if there is 0 kelvin , will sound travel at all?
gpt
Well, air doesn't exist close to absolute zero because it liquifies and then freezes. Sound can still travel through solids, so the solid nitrogen could have sound conduction. There are also unique forms of sound called "second sound" and "third sound" that occur in very cold liquid helium.