Volcanic Activity on the Planet Venus .... Pioneer Venus, the spacecraft which has been orbiting that planet since 1978, has been able to create a map of the geologic features of Venus with the use of .... (2134 9 )
The Cassini Spacecraft .... including Venus twice) before it goes into orbit around Saturn as the first spacecraft ever to do so. Earlier missions that visited Saturn - Pioneer 11 in 1979 .... (1416 6 )
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