[27] - The Year 1 Quadrillion
At this point, stellar close encounters detach all planets in star systems from their orbits.
By this point, the Sun will have cooled to just 5 Kelvin or -268.15 degrees C. Very close to becoming a black dwarf.
[1] - The Future of the Universe:
A long, but hopefully interesting ๐งต showcasing how the universe will evolve from the year 2022 until the VERY, VERY far future.
[26] - The Year 100 Trillion
The death of the last star in the universe marks the transition from the Stelliferous Era to the Degenerate Era.
With no free hydrogen to form new stars, all remaining stars slowly exhaust their fuel and die.