Jennifer (Jenni) Anne MacKinnon Sidey-Gibbons (b. 1988) studied at McGill University and earned her PhD from the University of Cambridge, where she continued on as assistant professor and lecturer in engineering. Her research related to combustion and the complex processes involved. In 2017, she was selected as an astronaut by the Canadian Space Agency.

David Saint-Jacques (b. 1970) is a Canadian physician and astronaut who studied at École
Polytechnique de Montréal, Cambridge University and Laval University. He worked as a medical
doctor in the Arctic, helped develop adaptive optics and interferometry systems, and is a qualified
pilot and scuba diver. Saint-Jacques was part of Expedition 58/59 on the ISS.

Jeremy Roger Hansen (b.1976) became a Canadian astronaut in 2009. Born in London and raised in southwestern Ontario, Hansen earned his pilot's license at age 17 and studied at the Royal Military College in Kingston, Ontario. He did research on wide-field-of-view satellite tracking. Astronaut training has taken him to the high Arctic to study geology, and to the ocean floor, living in the Aquarius habitat.
 

Guy Thomas Mackie (born 1955) is an amateur astronomer in British Columbia, Canada, who was instrumental in merging the Vernon Astronomy Group and the Okanagan Astronomical Society into the RASC Okanagan Centre, and then served three years as President of Okanagan Centre. Mackie also started Okanagan
Centre's telescope rental program, became Director of the club observatory in 2009, worked on the