Engineers devise a decision map to identify the best mission type to deflect an incoming asteroid – February 19, 2020 at 08:01AM

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On April 13, 2029, an icy chunk of space rock, wider than the Eiffel Tower is tall, will streak by Earth at 30 kilometers per second, grazing the planet’s sphere of geostationary satellites. It will be the closest approach by one of the largest asteroids crossing Earth’s orbit in the next decade.

John Jason Fallows

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