Karl Karlstrom

Sep. 23, 2011

Solving The Riddle Of The Grand Canyon’s Formation

Most geologists agree on the approximate age of the canyon, but puzzles remain about its carving.

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Michael Pollan Talks Plants and Food

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Mystery Box

Medical Oddities from the Bowels of the Mütter

\t"Disturbingly informative," is how museum director Robert Hicks describes Philadelphia's Mütter Museum--items of interest include a gangrenous hand, wax models of extinct diseases, deformed bones and body parts. Now imagine what's in the basement. Science Friday got a behind-the-scenes tour.

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