The Physiological and Psychological Effects On Astronauts of a 2.5 Years Round Trip Mission to Mars

This essay is about the physical and mental challenges of human travel and exploration, specifically, about those important issues that affect the human body and which are caused by a long-duration mission, such as a mission to Mars. This paper refers only to the time that the astronauts spend in the confines of the spacecraft and not the time spent on the surface of the planet itself.