Landing stably is a precondition for exploring a small celestial body in situ. The surface of a small celestial body frequently has weak gravity and is irregular, and the surface environment is unknown and uncertain. The landing mechanism tends to rebound and turn over, and the landing stability time is long. However, while most landing performance research has focused on lunar landing, there are differences between the surfaces of the moon and Mars.
Click here for original story, Scientists develop a legged small celestial body landing mechanism for landing simulation and experimental test
Source: Phys.org