Patrick L. Barry Lots of Lightning in 2005 Hurricanes Baffles Scientists Hurricanes don't usually crackle much. But Rita, Katrina, and Emily did. Researchers don't know why. More Muscle: Why Do Workouts Work? NASA scientists want to know why muscles bulk up instead of wearing out. By Patrick L. Barry Published 30 December 04 Ancient Mayan Canals Possibly Spotted in Satellite Images Study aims to prevent repeat of whatever doomed the classic culture. By Patrick L. Barry Published 16 November 04