Engineers remove a protective covering from around NASA's TDRS-L satellite at the Astrotech payload processing facility.

Engineers remove a protective covering from around NASA's TDRS-L satellite inside the high bay at the Astrotech payload processing facility in Titusville. The TDRS 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. Photo credit: NASA/Tim Jacobs