it seems highly likely that there is other life out there [[Frank Drake's running of the drake equation said there would be 10 potential communicating species in our galaxy, other numbers say it is in the thousands, some say there is a half. Then again, virtually every number put into the equation is arbitrary. the galaxy has approx. 100,000,000,000 stars. if .0001 of those had planets in the "goldilocks zone," that would be 10,000,000 planets there. if .00001 [[1/1000%) of these had developed intelligent life, that is still 100 planets with intelligent life. but is it visiting us? I seriously doubt it
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