Asteroid Dimorphos, which NASA intentionally hit with a rocket during its DART mission in September 2022, is behaving in unpredicted ways.
The asteroid Dimorphos is behaving in unexpected ways after being hit with a NASA rocket last year, new data suggest.
California high school teacher Jonathan Swift and his students first detected these unexpected changes while observing Dimorphos with their school's 2.3-foot telescope last fall. Several weeks after the DART impact, NASA announced that Dimorphos had slowed in its orbit around Didymos by about 33 minutes.
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