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As estimates of meteor strikes rise, how can Earth avoid destruction?

It’s not just in sci-fi movies. Asteroids really are moving closer to Earth more frequently and chunks of them are hitting too. The one that caught everyone’s attention struck last February, when a meteor hit near the Russian city of…  …

How do you stop an asteroid from hitting Earth?

MOST asteroids in the solar system come nowhere near the Earth, and of those that do, most are so small that they burn up harmlessly in the atmosphere. But, as a report written by America’s National Academy of Sciences points out, a big one is almost…  …