A giant asteroid is flying towards Earth, and humanity sends a team of the bravest and the smartest to save us from an impact. This is a classic movie plot, but how likely is it to happen in real life? To figure out the risk, scientists from different organizations have to study the positions and paths of the asteroids that come close to our planet, especially those that are at least 0.6 miles wide. And the good news is that none of these asteroids will probably hit us for at least the next 1,000 years.

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