Robert Thirsk holds the record for the most time spent in space by a Canadian astronaut, working on both Shuttle and International Space Station (ISS) missions. With a background in medicine and engineering, he has collaborated on many studies of the effects of the space environment on the human body. Robert Riddell is a Flight Surgeon for the Canadian Space Agency (CSA) and was the Deputy Crew Surgeon for Astronaut David Saint-Jacques’s ISS mission in 2018/2019. He is also the CSA’s Medical Mission Manager for Deep Space Exploration Health Initiatives. This event is presented by the Outer Space Institute in partnership with Green College.