3 ms·

I would like to know the reasoning behind the hypothesis that earth based life can't reach into the stratosphere?

• mabbo 11y ago
  Watch the video. He explains that exact question in great detail.
  • antiquark 11y ago
    Although he forgot about satellite and launch vehicle contamination bringing particles into orbit.
• 88e282102ae2e5b 11y ago
  It seems to come down to him wanting it to be true.
  • amelius 11y ago
    His main point is that the detected objects are not Earth-life-like.