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We are nowhere close to defending Earth from a cataclysmic asteroid
We are nowhere close to defending Earth from a cataclysmic asteroid,NASA's DART was a useful first step toward asteroid deflection. But there are asteroids both too big and too small for us to do much about.

We are nowhere close to defending Earth from a cataclysmic asteroid

NASA's DART was a useful first step toward asteroid deflection. But there are asteroids both too big and too small for us to do much about.