Advanced extraterrestrial civilizations could be living in galaxy clusters, and we’d do well to follow
The best place to look for advanced extraterrestrial civilizations, according to a leading Harvard astronomer, might be in the centers of matter-rich clusters of galaxies.
Extraterrestrial civilizations may have migrated into galaxy clusters to prepare for the impending isolation that intelligent civilizations may face as the universe stretches far beyond its current scale, according to Abraham Loeb, head of the University’s Department of Astronomy. from Harvard.
In an article posted on the ArXiv preprint server, Loeb describes how advanced alien civilizations may have congregated in Milky Way-like clusters of thousands of galaxies, similar to how ancient Earth dwellers flocked to rivers and lakes. .
Preparing for the Expansion of the Cosmos
In the 1990s, scientists discovered that the universe was expanding at a faster rate than previously believed, contradicting conventional theory at the time that gravity would eventually cause the universe to collapse in on itself.
This gave rise to the concept of dark energy, a supernatural power believed to represent three-quarters of the universe. Dark energy, according to experts, is to blame for the expansion of the universe towards the internal force of gravity.
By the time the universe is 138 billion years old, dark energy will have become the most dominant force in the universe, and all points in space will have receded so far as to be virtually inaccessible.
This also applies to the Local Group, which consists of the Milky Way, Andromeda, and all of their satellite galaxies.
Assuming humanity will still be around at the time of this event, Loeb cautions that it’s best to prepare for such intense isolation by transitioning into galaxy clusters.