Commercial investment is bringing space tourism closer to reality. UTMB’s Dr. James M. Vanderploeg co-authored this outline of what doctors will need to know. “Expectations of increased access to space will lead to challenges for medical experts and non-experts alike. Despite the fact that space shuttles are now consigned to history, we should not relegate to a museum shelf an important international dialogue on space travel as it pertains to all of us and to the health of our patients.”