SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Vladimir Ivanovich Vernadsky (1863-1945), Soviet geochemist and mineralogist. Vernadsky's major contribution was the concept of the noosphere, a stage in the evolution of the Earth beyond the geosphere and biosphere. He also carried out pioneering work in geochemistry, biogeochemistry, and radiogeology. Photographed in 1895.
Model release not available. Property release not available.