KENNEDY SPACE CENTER, FL - MAY 1: C. elegans nemotodes, or round worms, undergo examination by project scientists May 1, 2003 at the Kennedy Space Center in Florida. The worms were found alive last week in a container that was among the debris from the Space Shuttle Columbia recovered in East Texas. The worms are descendants of those that were part of an experiment that flew on Columbia's last mission before the spacecraft broke up on reentry February 1, killing all seven astronauts. (Photo by Volker Kern/NASA/Getty Images)