China's Mars mission faces setbacks with rover and robot.

China's upcoming Mars sample return mission, Tianwen-3, may include a small helicopter-like drone and a six-legged robot for sample collection. The mission is planned for launch around 2030, with a dual launch of Long March 5 rockets to send two vehicle stacks to Mars. The lander/launcher combo is designed to collect and store up to 500 grams of material, then launch back to space. The mission's surface sample may be collected using a drill and robotic arm to collect soils from as deep as 6 feet below the Martian surface.