Fermi paradox: How is it that we are so alone in the universe?

Reserved for subscribers by Tristan Vey published, updated

In search of the third type (5/6) - given the gigantic number of potential worlds, how is it that we have never received an extraterrestrial visit?This is the question that certain scientists are still asking today.

Petit-Gris and Green Bonsmen ignite our imagination.But the search for extraterrestrial life is also a very serious science which mobilizes the largest space agencies.How to seek life elsewhere than on earth?Is the presence of water essential?What if an intelligence arose from stars, could we communicate with it?"Le Figaro" goes in search of the third type.

In 1950, during an informal discussion in the Los Alamos laboratory, in the United States, the Italian physicist Enrico Fermi (Nobel Prize and one of the fathers of the American atomic bomb) was surprised that we have never beenseen from extraterrestrial.

Faced with several colleagues in the canteen, he would have made the following reasoning: given the considerable number of stars in the galaxy, the number of potential associated habitable worlds, the rhythm of technological evolution of humanity and the age ofThe universe (more than 13.5 billion years), several extraterrestrial civilizations would already have ...

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