electrical engineer and co-inventor of the Discrete cosine transform Michael Reynolds, astronomer Lesa Roe, current Chancellor of the University of North Texas System, and former director of the NASA's Langley Research Center in Hampton, Virginia Douglas A. Rossman, herpetologist Michael Ryschkewitsch, former chief engineer for NASA Melvin Sabshin, former Medical Director of the American Psychiatric Association Stephanie Moulton Sarkis, psychotherapist and author Samuel Sears, psychologist Dana Shires, medical researcher, member of the team that developed Gatorade Aseem Shukla, professor of urology at University of Pennsylvania and co-founder of Hindu American Foundation Stephen C. Sillett, botanist Robert S. Singleton, engineer, inventor, scientist, teacher of magnetics and computing Sung Won Sohn, Korean American economist Eduardo Sontag, Argentine mathematician Jeffrey Spieler, current director of research for USAID Lewis Stadler, geneticist David Steadman, museum curator Will Steffen, executive director of the ANU Climate Change Institute Gilbert Stork, creator of the Stork enamine alkylation, professor emeritus of chemistry at Columbia University Ashutosh Tewari, Indian oncologist and urologist Michael Thomas, entomologist James Thompson, former director of the NASA Marshall Space Flight Center Wolfgang A. Tomé, physicist Eva Vertes, Alzheimer's and cancer researcher Michael Warren, forensic anthropologist Nobel Prize laureates Robert Grubbs, winner of the Nobel Prize for Chemistry in 2005 for his work in the field of olefin metathesis Marshall Nirenberg, winner of the Nobel Prize for Physiology/Medicine in 1968 for describing the genetic code and how it operates in protein synthesis Astronauts Andrew M. Allen, former NASA astronaut, and former U.S. Marine Corps naval aviator William Frederick Fisher, former NASA astronaut, and current medical doctor Kevin A. Ford, former NASA astronaut pilot Fitzhugh L. Fulton, research pilot at NASA's Dryden Flight Research Center Ronald J. Garan, NASA astronaut, and former U.S. Air Force pilot Donald L. Mallick, former NASA research pilot Bill Nelson, former U.S. Senator and former U.S. Representative; Space Shuttle payload specialist astronaut (non-NASA Astronaut Corps); part of NASA initiative for placing U.S. congressional members in space until initiative suspended following Columbia accident Ronald A. Parise, former NASA astronaut Norman Thagard, former NASA astronaut, and current professor of engineering at Florida State University Presidents of universities and colleges Byong Man Ahn, former president of Hankuk University of Foreign Studies in Seoul, Korea, and former Ministry of Education, Science and Technology for South Korea M. S. Ananth, former director of Indian Institute of Technology Madras George F. Baughman, founding president of New College of