Dave Williams
Dafydd Rhys \"Dave\" Williams (born May 16, 1954) is a Canadian physician and a retired CSA astronaut. He earned a B.Sc in from McGill University, Montreal, in 1976, a master of science degree in physiology, MD, and master of surgery degrees from McGill University, Montreal, in 1983. He completed a residency in family practice in the faculty of medicine, University of Ottawa, in 1985 and obtained fellowship in emergency medicine from the Royal College of Physicians and Surgeons of Canada, following completion of a residency in emergency medicine at the University of Toronto, in 1988. Williams received postgraduate training in advanced invertebrate physiology at the Friday Harbor Laboratories of the University of Washington. Williams was selected by the Canadian Space Agency in June 1992. In February 1994 he participated in a 7-day space mission simulation. During this CAPSULS Project he was the Principal Investigator of a study to evaluate the initial training and retention of resuscitation skills by non-medical astronauts. He was also assigned as one of the crewmembers and acted as the crew medical officer. He announced his retirement as an astronaut on 29 February 2008, effective from 1 March 2008. He had two spaceflights, both of which were Space Shuttle missions. His first spaceflight, STS-90 in 1998, was a 16-day mission aboard Space Shuttle Columbia dedicated to neuroscience research. His second flight, STS-118 in August 2007, was flown by Space Shuttle Endeavour to the International Space Station. During that mission he performed three spacewalks, becoming the third Canadian to perform a spacewalk and setting a Canadian record for total number of spacewalks. These spacewalks combined for a total duration of 17 hours and 47 minutes.
Spaceflights
No. Mission Position Time Duration
1 STS-90 MSP 17.04. - 03.05.1998 15d 21h 50m
2 STS-118 MSP 08.08. - 21.08.2007 12d 17h 56m
Total 28d 15h 46m
