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Japan's Hayabusa2 Faces Surprising Challenges with Tiny Asteroid

9/21/2025

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Summary

Story summary

Japan's Hayabusa2 mission encounters challenges with asteroid 1998 KY26, confirmed to be 11 meters wide and rotating every five minutes.
Data from the Very Large Telescope shows the asteroid is smaller and faster than expected.
The mission aims for a 2031 rendezvous to explore the smallest asteroid targeted by a spacecraft.
Previous success includes returning samples from asteroid Ryugu in 2020, enhancing understanding of early Earth water origins.
Studying KY26 could aid asteroid mining and planetary defense, especially after the 2013 Chelyabinsk event.

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Story summary

Japan's Hayabusa2 mission encounters challenges with asteroid 1998 KY26, confirmed to be 11 meters wide and rotating every five minutes.
Data from the Very Large Telescope shows the asteroid is smaller and faster than expected.
The mission aims for a 2031 rendezvous to explore the smallest asteroid targeted by a spacecraft.
Previous success includes returning samples from asteroid Ryugu in 2020, enhancing understanding of early Earth water origins.
Studying KY26 could aid asteroid mining and planetary defense, especially after the 2013 Chelyabinsk event.