ARCHIMEDES is presently under development and the major project of the MSD since 2001. Starting in 2006, flight tests have been undertaken for testing the innovative balloon system in the low-gravity environment. Test carriers were so far the Airbus A300 for short duration parabolic flights and the sounding rocket test campaigns REXUS3-REGINA and REXUS4-MIRIAM for longer duration flight tests under free space conditions. Further flights tests are planned for the coming years (e.g. MIRIAM II) with the objective of qualifying ARCHIMEDES for its Mars mission by 2018. ARCHIMEDES will be carried to Mars on board an AMSAT Mars Probe or a similar satellite. ARCHIMEDES is developed by the MSD with the support of the Bundeswehr University Munich, of the IABG in Ottobrunn, the DLR-MORABA for rocket flight opportunities, other universities, and several industrial companies supporting specific technical areas.