Description:Camille Flammarion (fr. Camille Flammarion (February 26, 1842 June 3, 1925) was a French astronomer and popularizer of astronomy. In 1861 he published The Plurality of Inhabited Worlds, which was the beginning of a large series of his popular astronomical works. In the book "The Many Habitable Worlds", which was translated into many languages shortly after publication and only in France for twenty years was reprinted thirty times, Flammarion was one of the first to formulate the thesis of the comparability of civilizations in terms of development: "... All mankind inhabiting different planets constitute one common, connected chain of thinking beings... In the whole universe of mankind, they do not remain at the same stage of development; they rise higher and higher, they create an infinite variety among the stellar worlds... '.