Now Reading: NASA’s DART impact shortened asteroid Dimorphos orbit by 32 minutes
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NASA’s DART impact shortened asteroid Dimorphos orbit by 32 minutes
NASA’s DART impact shortened asteroid Dimorphos orbit by 32 minutes
NASA has confirmed that its DART mission successfully shortened the orbit of asteroid Dimorphos by 32 minutes, far exceeding the 73-second minimum success threshold. The spacecraft struck the small moonlet at 14,000…
The Story in Brief
NASA has confirmed that its DART mission successfully shortened the orbit of asteroid Dimorphos by 32 minutes, far exceeding the 73-second minimum success threshold. The spacecraft struck the small moonlet at 14,000 mph in September 2022, using a kinetic impact method to alter its trajectory. Dimorphos orbits the larger asteroid Didymos, and both were 6.8 million miles from Earth at the time. The result, announced on 11 October 2022, marks humanity's first successful demonstration of asteroid deflection. Debris ejected from the surface helped push the asteroid further off course. The European Space Agency's Hera mission will later survey the impact site to gather more data.
The Indian Opinion
The DART mission is a remarkable engineering feat, but some headlines risk overselling it as proof that Earth is now safe from asteroids. In reality, Dimorphos was a small, harmless target, and the 32-minute change came partly from unexpected debris ejection. Scaling this technique to a large, fast-moving asteroid remains unproven. The real test will come when the Hera mission surveys the crater and measures mass precisely. Until then, we should celebrate the step without declaring the problem solved.
Source: timesofindia.indiatimes.com
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