Evil and Destructive Apophis
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Astronomers have been keeping their eyes on a 1,200 foot wide chunk of space rock that has been hanging around the neighborhood lately. It's an asteroid called Apophis, and it's named for an ancient Egyptian spirit who was bent on plunging the world into eternal darkness. Scientists are concerned because this modern incarnation may succeed where its namesake failed.
Last year NASA gave Apophis a 1-in-37 chance of hitting the Earth in 2029, but after further observations of its path through space, NASA recently revised the odds to a 1-in-5,500 chance of colliding in 2036. Such an event, though unlikely, would cause an explosion about 100,000 times more powerful than the Hiroshima bomb and throw huge amounts of dust into the atmosphere, posing a grave risk to any humans who manage to survive the Avian Flu.
Scientists are now urging world governments to decide on a strategy for preventing the potential impact, because it will take years to develop and test any technology to deflect or destroy asteroids.