“It’s possible that the Milky Way is partially settled, or intermittently so; maybe explorers visited us in the past, but we don’t remember, and they died out,” says Jonathan Carroll-Nellenback, an astronomer at the University of Rochester and his collaborators in a new study that suggests it wouldn’t take as long as thought for a space-faring civilization to planet-hop across the galaxy, because the orbits of stars can help distribute life, offering a new solution to the Fermi paradox. “The solar system may well be amid other settled systems; it’s just been unvisited for millions of years.”
“A positive result in a search for the pattern would be one of the great experiments in the history of science.” Unidentified point-like very high energy gamma ray sources in the Milky Way may actually be starships of hyper-advanced alien civilizations who are actively exploring interstellar space, proposes Louis Crane in Searching for Extraterrestrial Civilizations Using Gamma Ray Telescopes.
“It’s a great mind-bending twist. Perhaps hyper-advanced life isn’t just external. Perhaps it’s already all around. It is embedded in what we perceive to be physics itself, from the root behavior of particles and fields to the phenomena of complexity and emergence,” says Dr. Caleb Scharf, a research scientist at Columbia University and director of the Columbia Astrobiology Center. “What we think might be the effects of mysterious forces such as dark energy and dark matter in the Universe, could actually be the influence of alien intelligence – or maybe even aliens themselves.”