Prerequisites and essence of V.I. Vernadsky's cosmic views
The article reveals the features of cosmic views of some representatives of Russian cosmism (N.F. Fedorov, V.S. Soloviev, V.Y. Bryusov etc.), their role in the formation of V.I. Vernadsky's biospheric and noospheric ideas expressing his cosmism. Particular attention is paid to his discovery of the Earth place and its biosphere in space, the cosmic function of the living beings in the biosphere and human activity in the implementation of its transition to the noosphere. The article stresses the contribution of this cosmist to the integration of different directions of Russian cosmism into a single holistic teaching.