Encyclopedia of Opinion
Question
Do aliens exist?
Position‹2 of 4›

No, alien life doesn't exist elsewhere in the Universe

This position holds that alien life does not exist anywhere else in the universe. It argues that no extraterrestrial life — not even simple microbial life — exists or will ever exist beyond Earth, making humanity and terrestrial life unique in the cosmos.

Supporting arguments · 2

  1. No simple life exists outside of Earth
    Aside from Earth, no other life exists in any other regions of the Universe
  2. No alien life will ever exist in the universe
    Not only does life currently not exist elsewhere in the Universe, it has never existed and will likely never exist in the obervable universe