The theorists predict that the beginning of the end will be in about 10 billion years — less than the present age of the universe.

Astronomers calculate that the universe will die in 33 billion years — much sooner than we thought

Source: space
Source Link: https://www.space.com/astronomy/astronomers-calculate-that-the-universe-will-die-in-33-billion-years-much-sooner-than-we-thought