First manned landing on Mars! This Northrop sketch shows how a soft landing on the red planet might look from ground level. A steerable gliding cloverleaf parachute slows the craft down as the retrorockets start to fire. The parachute is then jettisoned, and the retrorockets perform the final maneuver for touchdown. Retrorocket braking was perfected in the 1960’s to provide the soft landings for the Surveyor moon probe.
Prime goal of Project Viking is this National Aeronautics and Space Administration sketch, to land a biological laboratory on the surface of Mars. The picture shows a design in which the protective housing around the experiments unfolds in petal fashion once the laboratory is safely on the Martian surface.