At this very moment, eleven robotic missions are operating in orbit or on the surface of Mars, more than at any point during the past 60 years. These include the many orbiters surveying the red planet from orbit, the handful of landers and rovers, and one helicopter (Ingenuity) studying the surface.
Click here for original story, Germany is building a tiny rover that will roam the surface of Phobos
Source: Phys.org