Pioneer Venus launches 4 probes into the atmosphere of Venus ; acrylic on board, 1977
Super-refraction on Venus - Prior to the landing of Russian Venera probes, some astronomers suggested Venus' dense atmosphere might refract light so strongly that the horizon would seem to curve up (dated concept) ; acrylic and gouache on board, 1978; copyright Don Dixon
Venus Surface - a volcano adds to the hellish environment of Venus
Mariner 10 nears Venus. Gouache on illustration board, 1975. artwork © Don Dixon/cosmographica.com