Comments by "Petyr Kowalski" (@petyrkowalski9887) on "Where are all the aliens? | Stephen Webb" video.

  1. Neil de grasse tyson...a long time ago... But still, go ahead and take the credit
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  2. Where are all the aliens? A. Too far away to get anywhere near to us. Our galaxy is 100,000 light years across. Assuming aliens could travel at the speed of light it would take over 1000 human lifetimes to cross our galaxy.
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