The book tells about the life and scientific activities of the famous polar explorer, an outstanding Norwegian scientist, Nobel Peace Prize laureate - Fridtjof Nansen. Its Arctic voyages are described, including the first ever famous drift on the ship "Fram" across the Arctic Ocean. Nansen's scientific research on the nature of the Arctic is highlighted. Many years of friendship with scientists of the St. Petersburg Academy of Sciences, of which he was an honorary member for many years, are revealed. For a wide range of readers interested in the history of polar exploration.