Artist’s Concept: X-33 in OrbitThis is an artist's conception of the NASA/Lockheed Martin Single-Stage-To-Orbit (SSTO) Reusable Launch Vehicle (RLV) in orbit high above the Earth.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/artists-concept-x-33-orbit/Copy URL to clipboard> DownloadShareSize1041x799px