Inside the Astrotech facility in Titusville, Florida, the payload fairing for NASA's Tracking and Data Relay Satellite, TDRS-M, is moved into position to encapsulate the spacecraft. TDRS-M is the latest spacecraft destined for the agency's constellation of communications satellites that allows nearly continuous contact with orbiting spacecraft ranging from the International Space Station and Hubble Space Telescope to the array of scientific observatories. Liftoff atop a United Launch Alliance Atlas V rocket is scheduled to take place from Space Launch Complex 41 at Cape Canaveral Air Force Station at 8:03 a.m. EDT Aug. 18, 2017.