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NASA confirms Empire State Building-size asteroid at 20,000 mph
NASA has identified an asteroid roughly comparable in size to the Empire State Building, traveling through space at about ...
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3D skyscraper comparison: mind-blowing heights
From a tower with the largest clock on Earth to a mind-bogglingly tall building that holds 7 world records, this video presents a 3D comparison of the tallest skyscrapers on the planet. It features ...
A massive asteroid nearly the size of a New York skyscraper will make a close approach, or pass, by Earth in the early hours of Sept. 18, according to scientists. They say the asteroid, officially ...
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