From Sabine Hossenfelder.

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Correction: The mass of Dimorphos is several billion kilograms, not tons. Sorry about that! 😬

In 2021, NASA launched its Double Asteroid Redirection Test (DART) mission, which aimed to change the course of an asteroid by slamming a spacecraft into it at high speed. The impact occurred in 2022, and we’ve just now got a data analysis of how exactly the crash affected the asteroid. The results are unexpected.

Paper: https://iopscience.iop.org/article/10.3847/PSJ/addd1a

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