| http://www.w3.org/ns/prov#value | - ittle more than 17,000 miles from the earth's surface. it is about 150 feet in diameter, weighs about 143,000 tons. it is the closest an astroid of that size has come to earth in a century. experts are fairly confident it will miss us. >> fairly confident or absolutely confident? come on, tom. there is a big difference. we do not want it anywhere near earth, right? >> he is what the dinosaurs though
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