Key Words Needed: Bleak
Thus, within the next 10^14 years, the longest lived stars will cool to very low temperatures. Others, into black holes.
After 10^15 years, The Sun may have expected to come into contact with another star. This collision is most likely from the Andromeda galaxy.
After 10^19 years, the central region of the galaxy may be expected to collapse into a black hole.
Afetr 10^20 years, the Earth-Sun system will decay by radiation of gravitational waves.
After 10^24 years, steller orbits around the galaxy will decay via gravitational radiation.
After 10^64 years, a black hole of solar mass will decay by radiation: Decay of any galactic black holes are thought to take 10^100 years to finally reach a state of rediation. At this end, , every black hole will for a very short time, brighten and spark.
Then after a supermassive 10^1500 years, all ordinary matter will have fissioned, or fusioned to iron through radioatictive processes.
Nice Future for the Open - Universe eh?