All biology majors know that two interconnected biopolymer strands coil around each other to form a double helix that makes up each deoxyribonucleic acid molecule. Embedded in that DNA molecule is the individual genetic code that makes us all unique individuals.

Veteran NASA astronaut, Col. Randy Bresnik, USMC (Ret.), is one of The Citadel’s most visible principled leaders in the history of the college. The 1989 alumnus will serve as flight engineer July 28 on a mission to the International Space Station (ISS).