Mars rover to regain contact. Mars 2, Mars 3 were physically tethered probes; "Sojourner" was dependent on the Mars Pathfinder base station for communication with Earth; MER-A & B and "Curiosity" were on their own. Of these "Curiosity" is still active, and "Spirit", "Opportunity" and "Sojourner" completed their missions before losing contact. Seven rovers have been dispatched to Mars: "Examples Landed instrumentation" (Rovers) Mars rovers in development include: One experimental design, not proposed for any actual mission, is: NASA distinguishes between "mission" objectives and "science" objectives. Mission objectives are related to progress in space technology and development processes. Science objectives are met
Lego Mars Mission of the theme. Lego Mars Mission Mars Mission was a Lego theme sold from 2007 to 2009. It is set on Mars and features astronauts, aliens, and high-tech machinery. It is an influenced theme from the 2001 Lego Life on Mars line. It has been cited as "delivering results on par with some of the strongest classic play themes in Lego history." In the year 2045, a highly upgraded version of the Spirit, a previous martian rover, was sent to the Red Planet, where it discovered mysterious, radio-active crystals (called 'Biodium' in the story). A manned mission followed, which discovered