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NASA Asteroids Signal: Colossal Sears Tower Size Closer to Earth | Science | News



At the lower end of the estimate, the asteroid is comparable in size to the Eiffel Tower in Paris, France.

The White House's 2018 report on the dangers of unidentified asteroids suggests that an object this large can kill millions of unsolved.

A diagram comparing the relative size of an asteroid to its potential "devastation on impact" shows that anything measuring 1312 feet to 5249 feet (400 meters and 1.6 km) across the entire continent can be destroyed.

The report states: "Even small NEOs can have significant destructive effects.

"For example, on February 15, 2013, an asteroid measuring approximately 20 meters in size created an air burst near Chelyabinsk, Russia, with approximately 20 to 30 times more energy than that released by the first atomic bombs.


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