The Learning Curve

New tricks for an old dog.

Near miss with big rock

A space rock that is about 72 feet in diameter, asteroid 2011-OD18, flew past Earth on July 28, 2011 at a distance less than one-half that of the moon’s distance. The rock missed the earth by about 95,000 miles. The sobering fact is that astronomers who track such near-earth asteroids didn’t know about asteroid 2011-OD18 until July 31, after it had whizzed past the planet.

Written by Tom Fox

08/07/2011 at 1:20 pm

Posted in Uncategorized

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