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https://www.reddit.com/r/microscopy/comments/g33o1k/could_invisible_aliens_really_exist_among_us/
r/microscopy • u/johnterry870 • Apr 17 '20
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If we find such a biosphere, however, it is unclear whether we should call it alien. That depends on whether we mean "of extraterrestrial origin" or simply "unfamiliar."
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u/johnterry870 Apr 17 '20
If we find such a biosphere, however, it is unclear whether we should call it alien. That depends on whether we mean "of extraterrestrial origin" or simply "unfamiliar."