Asteroid flyby

Well, lucky us then! Below a picture of Tunguska as it looked after the blast.

"On April 16th, asteroid 2007 GU1 will fly past Earth. There's no danger of a collision. The 50 meter-wide space rock will be 500,000 miles away at closest approach, about twice the distance to the Moon. Interestingly, an asteroid about this size may have caused the Tunguska explosion of 1908. Such an impact occurs every thousand years or so, researchers believe. This time, no Tunguska!"

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