When will all the stars go out?

The nuclear stage of stellar evolution will end in 10 ^ 14 years. New stars will not form, and old ones, when cooled down, will turn into cold bodies or black holes.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.