An exhibit at WVU is shining a light on an aspect of coal mining history.  It's called ‘Defying Darkness' and it chronicles how coal miners lit their work in dozens of displays.  The University said it didn't have to look far to find all of the artifacts.  The exhibit is open from 1 p.m. to 4 p.m. on Mondays, Wednesdays and Fridays in the Mineral Resources Building.