Exploration of Jupiter Exploration of Jupiter The exploration of Jupiter has been conducted via close observations by automated spacecraft. It began with the arrival of "Pioneer 10" into the Jovian system in 1973, and, , has continued with eight further spacecraft missions. All of these missions were undertaken by the National Aeronautics and Space Administration (NASA), and all but two have been flybys that take detailed observations without the probe landing or entering orbit. These probes make Jupiter the most visited of the Solar System's outer planets as all missions to the outer Solar System have used Jupiter flybys to reduce fuel requirements
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