Modularity is taking off in more ways than one in space exploration. The design of the upcoming "Lunar Gateway" space station is supposed to be modular, with different modules being supplied by different organizations. In an effort to extend that thinking down to rovers on the ground, researchers at Germany's space agency (DLR), developed an architecture where a single, modular rover could be responsible for both exploration and carrying payloads around the moon or Mars. The study is published in Acta Astronautica.