The Space Test Program-Houston 6 (STP-H6) payload is moved to a transport truck at the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on March 19, 2019. The payload will be moved to the SpaceX facility where it will be stowed in the trunk of the Dragon spacecraft for delivery to the International Space Station on SpaceX’s 17th Commercial Resupply Services mission (CRS-17) for NASA. STP-H6 is an x-ray communication investigation that will be used to perform a space-based demonstration of a new technology for generating beams of modulated x-rays. This technology may be useful for providing efficient communication to deep space probes, or communicating with hypersonic vehicles where plasma sheaths prevent traditional radio communications. CRS-17 is scheduled to launch from Space Launch Complex 40 on Cape Canaveral Air Force Station in late April.