Dallas (played by actor Tom Skerritt) from “Alien” approaches an alien who didn’t make it. Some Australian researchers suggest that a lot of extraterrestrials may not make it, due to a Gaian bottleneck. Stanley Bielecki Movie Collection/Getty Images Advertisement Do you ever gaze into the yawning expanse of stars and question what else is out there? Do you ever wonder if far-flung alien species are contemplating the same thing? You can stop dreaming, star child, because all those diverse forms of life probably died in the evolutionary womb. According to a new Australian National University paper published in Astrobiology, the spark of life is rare and, when it occurs, most likely perishes in early extinction. The authors, Dr. Aditya Chopra and Dr. Charles H. Lineweaver call their model the “Gaian bottleneck” and present it as a solution to Fermi’s paradox, which in turn outlines the contradiction between the probability of alien life and the stunning silence we’ve experienced thus far from the intergalactic community. Simply put, where is everybody? Why does extraterrestrial life seem to exist solely in fantasy? Various bottleneck theories attempt to answer this question, accounting for key challenging moments in the ascension of any given planetary ecosystem…. Read full this story
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