Red Orbit News, Jan. 29, 2008 NASA is using a new treadmill that allows people to run while suspended horizontally to help astronauts prepare for long-duration missions to the moon and beyond. NASA's Johnson Space Center, Houston, will manage the studies that will be conducted at the University of Texas Medical Branch in Galveston. NASA will use the locomotion simulator to develop improved exercise routines for astronauts during spaceflight.