Where are the aliens? by Alain Cirou, Sky and Space

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Association Française d'Astronomie (AFA)

Published on Jun 18, 2022
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Still no sign of extraterrestrials. Should we conclude that life is rare, or even non-existent elsewhere in the Universe? However, astronomers estimate that there are billions of habitable planets in our galaxy alone. So, if life is on the contrary commonplace in our cosmos, where are they? Alain Cirou, editorial director of Ciel & espace will take stock of scientific research into extraterrestrial intelligence and the possible reasons for this great silence.

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