Doomsday asteroid Apophis could crash into Earth in 2036, killing millions and causing chaos worldwide, Russian scientists say. The 300-meter-wide asteroid is traveling at 37,014 kilometers per hour. If it passes through a narrow gravitational keyhole in 2029, it would hit the Earth seven years later.

NASA, however, says the chances of Apophis hitting the Earth are 1/250,000. And if it were on course to slam into the planet, NASA would knock it off course — ‘Deep Impact’-style.
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