How the universe will die

The heat death of the universe, also known as the Big Freeze (or Big Chill), is a scenario under which continued expansion results in a universe that asymptotically approaches absolute zero temperature. Under this scenario, the universe eventually reaches a state of maximum entropy in which everything is evenly distributed and there are no energy gradients—which are needed to sustain information processing, one form of which is life. This scenario has gained ground as the most likely fate.

(Source: Wikipedia)

https://en.m.wikipedia.org/wiki/Ultimate_fate_of_the_universe#:~:text=Big%20Freeze%20or%20Heat%20Death,-Main%20articles%3A%20Future&text=Under%20this%20scenario%2C%20the%20universe,as%20the%20most%20likely%20fate.