John McFall is the subject matter expert for a European Space Agency study aimed at fully integrating an astronaut with a physical disability into a long-duration mission to the International Space Station. He is also the first world’s astronaut candidate with a physical disability. How people with disabilities will travel to spaceIn 2000, John McFall’s life took a sharp turn when he lost his leg in a motorcycle accident. But for McFall, a British athlete, surgeon, and now astronaut, the loss became a catalyst for a remarkable journey that would take him from elite sports to the frontiers of s…