Could a 'humongous' asteroid really hit Earth in 2040? (The Week)

[unable to retrieve full-text content]The Week - Scientists warn of a small but real threat that a space rock longer than a football field could smash into our planetWary scientists are keeping their eyes on a giant asteroid that has a teeny-tiny chance of smashing into Earth in 2040. The "humongous" rock's trajectory is apparently worrisome enough that some experts are already calling for ideas on how to deflect it. Here's everything you need to know about this potentially Earth-threatening asteroid:

Source: http://us.rd.yahoo.com/dailynews/rss/oped/*http%3A//news.yahoo.com/s/theweek/20120229/cm_theweek/224989

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