Asteroid Trackers (2008-06-30)

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Overview

The asteroid believed to have wiped out dinosaurs 65 million years ago was rare but hardly unique. This compelling special delves into various facets of asteroid research around the globe revealing how experts are pushing the boundaries of technology to protect us from 250-ton behemoths like Apophis, an asteroid that could come dangerously come close to Earth in 2029, and again in 2036.

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