HL-20
via nasa.gov
Short excerpt below. Read at the original source.
HL-20 Artist’s conception of HL-20 Credit: NASA The HL-20 was a spaceplane concept studied by VAB for over fifteen years. The design utilizes a lifting body configuration, which could make a conventional runway landing on return from orbit. The lifting body also allows for lower entry heating and acceleration as well as an increased cross-range […]