Smithsonian Report, 1964. — Sagan 



PLATE 2 



The Mariner II spacecraft, as it might have looked during its encounter with Venus on 

 December 14, 1962. The horizontal panels are solar cells for the conversion of sunlight 

 into electricity. The microwave radiometer is the dish-shaped instrument above the solar 

 cells, in the middle of the spacecraft. (Courtesy of the National Aeronautics and Space 

 Administration.) 



