DLR and France's National Space Research Center (CNES) will help JAXA build and study a router exploring one of the moons. This runner will fly bundled with the MMX spacecraft, which will rotate both Fowo and Demo. According New Scientistif everything goes according to the plan, the rover will become the first to ever land on a small body in the solar system. In addition, JAXA's collaboration with DLR also gives her the opportunity to conduct experiments using the Bremen Fall Tower in Germany – a microgravity tower that gives scientists a way to test equipment in gravity.
While JAXA has not yet decided on the final destination of the rover, said Tim Glotch (planetary scientist at Stony Brook University in New York) New Scientist: "My guess is that they would go to Fivos if there was no kind of mechanical spacecraft cause, because it's a bigger target and it's more important." A closer look at the moons will help us understand where they come from and what their compositions are. Knowing what comes can be crucial for future manned missions – they could, for example, be a source of water for fuel. This could make it possible to transport fewer fuels and reach longer distances by using the moons as a feeder station.
JAXA hopes to send the MMX mission to space in 2024. Assuming that target date is reached, the spacecraft will enter Aris's track in 2025. Then it will return to Earth with samples of moons in tugs sometime in 2029.