Aliens, UFOs, and Life Beyond Earth: Are We Really Alone? (Parent Q&A)
This guide explains the main scientific ideas in the lesson about life beyond Earth and unusual observations in the sky. It separates possibility, habitability and evidence so that these ideas are not confused. It also explains why Mars, ocean worlds, exoplanets, UFOs, UAPs and the Fermi question do not provide the same kind of evidence. Life beyond Earth remains scientifically possible but unconfirmed by the evidence covered in the lesson.
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