Menacing asteroid racing towards Earth for dangerously close approach today
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Apocalyptic movies like Armageddon have explored the possibility of total annihilation if an asteroid strikes on Earth. Although asteroids make close approaches to Earth nearly every day, none of them impact the surface. But what if an asteroid, which can end life, actually hits Earth? The plan to save the planet wouldn't be as fancy as Bruce Willis drilling into the asteroid to nuke it. NASA has already carried out the testing of its DART Mission for planetary protection which involves crashing a spacecraft into an oncoming asteroid to successfully divert it from its path. This could help prevent an asteroid collision and save billions of lives.But success depends on what kind of asteroid it is. If it is not hard or metallic, then the crash deflection strategy may well not work....