《Science Watch 2009 05 16》 - 免费有声读物

16 May 2009 (Dave and Kim) "Explosions in the Sky: How Dangerous Are Asteroids?"   Dave and Kim interview Dr. Mark Boslough, one of the world's leading experts in terrestrial impacts by large objects (asteroids, comets, etc).  Of particular interest in this show is an hypothesized impact by an object about 10,000 years ago that may have ben instrumental in the extinction of very large fauna such as mammoths, Large Bison, etc.   What does Dr. Boslough think about this possibility?  The regular features of Trivia, Creation Corner, and Media Fumbles, are also included.