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Frank says the potential number of planets orbiting their parent stars within a habitable distance is staggering.
“Even if you are pretty pessimistic and think that you’d have to search through 100 billion (habitable zone) planets before you found one where a civilization developed, then there have still been a trillion civilizations over cosmic history!” Frank wrote. “When I think about that, my mind reels — even if there is just a one in a 100 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.”
“The existence of planets orbiting stars other than the sun is a 2,500-year-old question that has been entirely answered over the last 20 years,” said Frank. “We now know that every star in the night sky has at least one planet orbiting it, and many of those are in the right place for life to form.
originally posted by: frenchfries
Still no official contact so what do we conclude ?
originally posted by: TXRabbit
Well, they better get a move on and come pick me up!
originally posted by: incoserv
So, now the word study is synonymous with the word conjecture, eh?
This is all it is, conjecture. There's no "science" to back up someone's opinion. Not say there are not "trillions" out there, not saying they are. But it's not a "study." No evidence of anything found.