Among the major representatives of Russian cosmism was Nikolai Fyodorovich Fyodorov (1828–1903), an advocate of radical life extension by means of scientific methods, human immortality, and resurrection of dead people.
Salah satu di antara tokoh-tokoh utama dari gerakan kosmisme Rusia adalah Nikolai Fyodorovich Fyodorov (1828-1903), seorang penganjur radikal perpanjangan hidup melalui metode ilmiah, keabadian manusia, dan kebangkitan orang mati.