27 fev 1996 ano - 2/27/96 Carl Sagan "I personally have been captured by the notion of extraterrestrial life... It would be an absolutely transforming event in human history... we have to be very careful. There have been a few instances in the [past]. We thought we found something, and it always turned out to be explicable."

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https://youtu.be/8R14lkKZUNw?si=16OlM_FSYq2o6xVb

https://www.physicsforums.com/threads/uncovering-the-truth-feynmans-perspective-on-flying-saucers.38263/

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