(Source: phys.org) A system to allow air- and ground-based robot vehicles to work together, without GPS signals or expensive sensor devices, is being developed by a team at Yonsei University in Korea. This could be used by unmanned vehicle teams to explore environments, ranging from farms here on earth to the surfaces of other worlds. No Man's Land Unmanned ground … [Read more...] about Air- and Ground- Based Autonomous Vehicles Working Together