![](https://webarchive.library.unt.edu/eot2008/20090508075924im_/http://www.nsf.gov/images/x.gif) Press Release 09-083 - Video Timothy Killeen, NSF's assistant director for geosciences
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Timothy Killeen, NSF's assistant director for geosciences
Credit: National Science Foundation/National Academy of Sciences Back to article |
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