s planners work at a higher abstraction level while it performs low-level, often-repetitive tasks. It also helps them produce a plan rapidly, explore alternative solutions, and choose the most robust plan for execution. Additionally, planners can analyze any problems over multiple days and identify payload overcommitments that cause resource bottlenecks and increase the risk of data losses. Mexar2 has significantly increased the data return over the whole Mars-Express mission duration. It’s effectively become a work companion for mission planners at the European SpaceAgency’s European Space Operations Center (ESOC) in Darmstadt, Germany. Dumping data from Mars Launched on 2 June 2003, Mars-Express is the ESA’s first mission to orbit another planet. Notwithstanding a limited budget, the mission has ambitious goals for its scientific experiments. The orbiter is equipped with seven payloads, each gathering novel planetary information. The “Mars-Express Mission” sidebar describes...