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NASA's DART Unveils Surprising Challenges in Asteroid Defense

7/13/2025

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Summary

Story summary

NASA's DART mission made headlines in 2022 by successfully deflecting the asteroid Dimorphos, but new findings unveil surprising challenges. The collision sent over 100 boulders flying, some carrying three times the energy of the spacecraft, shifting Dimorphos's orbit. As we prepare for the ESA Hera mission in 2026, understanding these fragments is crucial for future planetary defense.

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Story summary

NASA's DART mission made headlines in 2022 by successfully deflecting the asteroid Dimorphos, but new findings unveil surprising challenges. The collision sent over 100 boulders flying, some carrying three times the energy of the spacecraft, shifting Dimorphos's orbit. As we prepare for the ESA Hera mission in 2026, understanding these fragments is crucial for future planetary defense.