Shensuo (Chinese: 神梭), formerly Interstellar Express,[6] is a proposed Chinese National Space Administration program designed to explore the heliosphere and interstellar space.[3] The program will feature two or three space probes that were initially planned to be launched in 2024 and follow differing trajectories to encounter Jupiter to assist them out of the Solar System. The first probe, IHP-1, will travel toward the nose of the heliosphere, while the second probe, IHP-2, will fly near to the tail, skimming by Neptune and Triton in January 2038.[7][2][8] There may be another probe—tentatively IHP-3—which would launch in 2030 to explore to the northern half of the heliosphere.[1][9]IHP-1 and IHP-2 would be the sixth and seventh spacecraft to leave the Solar System, as well as first non-NASA probes to achieve this status.
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