What is Heat death of the universe?
{{Physical cosmology|expansion}} The '''heat death of the universe''' or just '''heat death''' is a theory about how our universe might end. It would involve [[entropy]] reaching its maximum state and [[thermodynamics]] ceasing. It will not happen for an extremely long time. The very earliest estimates place it as 10^100 years from now, or one with one hundred zeros. It may take even longer than that. [[Category:Cosmology]] [[Category:Thermodynamics]] {{sci-stub}}