Journey to the planets - Ryan Peter, Pesek Ludek

Nuotraukos, photos: The Hale Observatories, pp.12, 44 Hasselblad, N.A.S.A., p. 3 Jet Propulsion Laboratory, Pasadena, N.A.S.A, pp. 16, 21, 24, 28, 29 Massachusetts Institute of Technology, Lincoln Laboratory, p. 12 Mount Wilson and Palomar Observatories, pp. 33, 36 New Mexico State University Observatory, pp. 13, 36 and 37 Princeton University Observatory, University of Chicago, p. 41.