This Nonprofit Wants to Catapult Material From Incoming Asteroids to Protect Earth
In February 2013, an asteroid about the size of a house punched its way through Earth's atmosphere and broke apart over the city of Chelyabinsk, Russia. The blast was so strong, it left a bright streak in the skies and triggered a powerful shockwave, shattering glass and resulting in the injury of over a 1,000 people.