Asteroid Twice World's Tallest Building Will Pass Through Earth On Friday (Pics) - Gistmaster

Measuring just over a half a mile

Measuring just over a half a mile (2,722ft) tall, the Burj Khalifa has been the tallest building in the world since it was built in 2004. But Dubai’s enormous building pales in comparison to an aste… [+3387 chars]

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