Pioneer 10 Pioneer 10 Pioneer 10 (originally designated Pioneer F) is an American space probe, launched in 1972 and weighing , that completed the first mission to the planet Jupiter. Thereafter, "Pioneer 10" became the first of five artificial objects to achieve the escape velocity that will allow them to leave the Solar System. This space exploration project was conducted by the NASA Ames Research Center in California, and the space probe was manufactured by TRW Inc. "Pioneer 10" was assembled around a hexagonal bus with a diameter parabolic dish high-gain antenna, and the spacecraft was spin stabilized around the axis of
Outer Planet Flagship Mission were two primary candidate missions under study: Europa Jupiter System Mission (EJSM) and Titan Saturn System Mission (TSSM). On February 18, 2009 NASA announced that both missions can proceed forward, but the EJSM is to be the first, departing Earth in 2020 and arriving at Jupiter in 2026. The Titan mission is to be launched later. The Europa mission concept has since changed, with the "Europa Clipper" mission to be launched by NASA, with a target launch date of 2022, and a separate European mission Jupiter Icy Moon Explorer (JUICE). The proposed Titan mission is not currently being developed nor