Big Asteroid 2011 AG5 Could Pose Threat to Earth in 2040 (SPACE.com)

[unable to retrieve full-text content]SPACE.com - Scientists are keeping a close eye on a big asteroid that may pose an impact threat to Earth in a few decades.

Source: http://us.rd.yahoo.com/dailynews/rss/space/*http%3A//news.yahoo.com/s/space/20120227/sc_space/bigasteroid2011ag5couldposethreattoearthin2040

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