dart-mission

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NASA's DART spacecraft successfully altered the orbital velocity of asteroid Dimorphos by impacting it in 2022, reducing its 12-hour orbit around its larger companion Didymos by 32 minutes—the first human-caused change to a celestial object's orbit. Follow-up observations using stellar occultations confirmed the impact also changed the asteroids' joint orbit around the sun by approximately 150 milliseconds, with implications for future planetary defense strategies.

NASA DART Dimorphos Didymos ESA Hera Rahil Makadia University of Illinois Urbana–Champaign
sciencenews.org · pseudolus · 5 days ago · details · hn