John Charles
airdate: TBA

Dr. John Charles is working on a problem that won't become real for another 30 years or so: He and his colleagues at NASA's bioastronautics group are trying to figure out how to keep our astronauts healthy on the three-year trip to Mars and back.

Dr. Charles currently holds the position of Deputy Chief Scientist for Bioastronautics at the Johnson Space Center in Houston. He also leads the Bioastronautics Critical Path Roadmap Project, which is responsible for identifying all of the health risks associated with extended human space travel.

Previously, he ran the cardiovascular laboratory at the Johnson Space Center and worked as a mission scientist on Shuttle mission STS-107. He was trained as a cardiovascular physiologist, earning a Ph.D. from the University of Kentucky and a bachelor's degree from Ohio State University.

His work has been featured in an article in Smithsonian Magazine and in a New Yorker article entitled "Medicine on Mars."