High Altitude Venus Operational Concept
NASA crewed Venus mission concept
High Altitude Venus Operational Concept (HAVOC) was a proposed set of crewed NASA mission concepts to the planet Venus. All human portions of the missions would be conducted from lighter-than-air craft or from orbit. A similar concept, the "Floating Islands of Venus", was proposed by Soviet engineer and sci-fi writer Sergei Zhitomirsky in 1971....
