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On this page, you'll find regularly updated audio, video, and text reports from our producers and correspondents. We invite you to join the discussion about topics covered here on our board and to subscribe to our audio and video podcasts to download these reports to your computer or MP3 player.
10.4.2006 Hit or MissWhy can't scientists tell us for sure whether the stadium-sized asteroid Apophis will hit Earth? In this riff on the nature of scientific uncertainty, Neil deGrasse Tyson explains. 
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© | Created October 2006 |
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