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Q&A about asteroid’s close encounter
Feb. 7: NASA’s Donald Yeomans answers the most commonly asked questions about the Feb. 15 close encounter with asteroid 2012 DA14.
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NBCNews.com:   Q&A about asteroid’s close encounter
Season 2013 : Episode 0207
Feb. 7: NASA’s Donald Yeomans answers the most commonly asked questions about the Feb. 15 close encounter with asteroid 2012 DA14.
Aired: 13-02-07
Views: 12659

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