Illustration of the X-37 Advanced Technology Demonstrator in STS cargo bay

This artist's conception shows the X-37 Advanced Technology Demonstrator in the Shuttle Payload Bay. The X-37 lies on a pallet, with the Earth in the background and the Sun rising on the right. Rounded on the top and flat on the bottom, the X-37 design incorporates double-delta wings and two horizontal stabilizers, forming a V-shape.