by Alfred Roulet · J'ai lu · libro de bolsillo · ISBN 9782277513209
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«À la recherche des extra-terrestres» is Alfred Roulet's popular science essay, published by J'ai lu in paperback (189 pages, in French).
Roulet reviews the theories and speculations about the existence of extraterrestrial life circulating at the end of the 20th century: alleged encounters, received signals, and the debate between ufology and science. The book combines popular science with mystery and offers a reflection on humanity's place in the universe.
Published in 1979, it belongs to the L'Aventure mystérieuse collection from J'ai lu.
For readers interested in ufology, the mysteries of the cosmos, and popular science about possible extraterrestrial civilizations.
