New Research Suggests The Universe Is Swamped By Histories Other Than Our Own
Exciting new research published in the journal Astrobiology concludes that the odds of us having been alone in the universe is very, very small.
Study co-authors Adam Frank and Woodruff Sullivan used NASA’s recent planetary discoveries to calculate the odds of whether sophisticated civilizations existed on these potentially habitable exoplanets in the past or present.
Franks believes that the possibility of the potential number of planets orbiting their parent stars within a habitable distance is staggering.
Frank explains by saying “Even if you are pretty pessimistic and think that you’d have to search through a hundred billion habitable zone planets before you found one where a civilization developed, than there have still been a trillion civilizations over cosmic history!”
“Even if there is just a one in a hundred billion chance of evolution creating exo-civilizations, the universe still has made so many of them that we are swamped by histories other than our own.”
Sullivan, of the astronomy department and astrobiology program at the University of Washington, elaborates by adding “That means that even if there have been 1,000 civilizations in our own galaxy, if they live only as long as we have been around — roughly 10,000 years — then all of them are likely already extinct. And others won’t evolve until we are long gone.”
SETI Institute senior astronomer Seth Shostak seems to approve as he was quoted as saying “Frank and Sullivan use new research indicating that roughly one in five stars is orbited by a planet that could nurture biology. After that, it’s just a matter of counting up the tally of stars in the visible universe, and saying that — with all the suitable real estate that’s out there, if we’re the only place with intelligent life, then we’ve really won the mother of all lotteries.”