IMG_20180425_144454 June 10, 2018 4096 × 2304 Grand USA Chronic Hypoxia Tour 2018 Entering the ARkansas Center for Sopace and Planetary Sciences. From Left Larry Roe, Director, Prof. Dr. Gustavo Zubieta-Calleja, Cindy Youngblood and Caitlin Ahrens pHd Student.