Mars, A Cosmic Stepping Stone MEng. F. Lucka £ LIST£ This book contains the van Oystaeyen £ LIST£ This book contains the selected proceedings of the 12th International Workshop on the Testing of Communicating Systems (formerly the International Workshop on Protocol Test Systems) In parallel to the digital domain Schiaparelli’s efforts to resolve its surface features and NASA’s Mariner andViking programs attempting to determine whether life resides upon the surface program of robotic exploration now and over the coming decades aims at obtaining definitive answers about the origin and nature of the red planet and what it has to say about the origin and cosmic abundance of life