Christopher Chyba. Professor of Astrophysical Sciences and International Affairs, Princeton University. Member of President's Council of Advisors on Science and Technology
NASA
2009-06-04
<a rel="nofollow" class="external free" href="http://www.nasa.gov/offices/hsf/members/chyba-bio.html">http://www.nasa.gov/offices/hsf/members/chyba-bio.html</a>