Space.com #Duane Graveline, Scientist-Astronaut Who Resigned from NASA, Dies at 85 6 September 2016 fborgosano Leave a comment Share: Duane Graveline, a medical doctor who was among NASA’s first scientist-astronauts, but who resigned for personal reasons after just six months, died Sep. 5. He was 85. from Space.com ift.tt/2cdxeLL Share: