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JAXA Plans Comet Sample Return Mission by Late 2040s

4/14/2026

Summary

Story summary

Japan Aerospace Exploration Agency (JAXA) is considering the Next Generation Small-Body Return (NGSR) mission to comet 289P/Blanpain, targeting sample return by the late 2040s.
The mission would study presolar materials and planetary formation, leveraging Hayabusa2's demonstrated capability.
The project faces a long timeline and requires international partnerships to share costs, risking sustained political and financial support and public interest.

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Story summary

Japan Aerospace Exploration Agency (JAXA) is considering the Next Generation Small-Body Return (NGSR) mission to comet 289P/Blanpain, targeting sample return by the late 2040s.
The mission would study presolar materials and planetary formation, leveraging Hayabusa2's demonstrated capability.
The project faces a long timeline and requires international partnerships to share costs, risking sustained political and financial support and public interest.