NASA seeks options for Mars data relay in which NASA would purchase relay services from a commercial service provider to support users at Mars, including landers and rovers and, potentially, aerobots and orbiters. In this model, the commercial provider would own and operate relay orbiter(s), and NASA would contract to purchase services over some period of time… NASA encourages innovative ideas for cost-effective approaches that provide backward-compatible UHF relay services for existing landers, as well as significantly improved performance for future exploration activities.