Local group of galaxies · Cosmological isolation
The local group is beyond the cosmological horizon of other galaxies
Accelerated expansion will make distant galaxies inaccessible for observation and interaction.
What this means
Under the standard ΛCDM scenario, our gravitationally bound island will remain increasingly lonely.
PRIMARY SOURCE
A Dying Universe: The Long-Term Fate and Evolution of Astrophysical ObjectsReviews of Modern Physics ↗