Mariner 6 and 7
Spacecraft
Mariner 6 and Mariner 7 were two uncrewed NASA robotic spacecraft that completed the first dual mission to Mars in 1969 as part of NASA's wider Mariner program. Mariner 6 was launched from Launch Complex 36B at Cape Canaveral Air Force Station and... Wikipedia
Manufacturer: Jet Propulsion Laboratory
Launch date: Feb. 25, 1969