Human Mars Mission Design – The Ultimate Systems Challenge John F. Connolly a, B. Kent Joostenb, Bret Drakec, Steve Hoffmanc, Tara Polsgroved, Michelle Ruckera, Alida Andrewsc, Nehemiah Williamsa a NASA Johnson Space Center, 2101 NASA Parkway, Houston, Texas 77058, john.connolly-
[email protected],
[email protected],
[email protected] b Consultant,2383 York Harbour Ct., League City, TX 77573,
[email protected] c The Aerospace Corporation, 2310 E El Segundo Blvd, El Segundo, California 90245,
[email protected],
[email protected],
[email protected] d NASA Marshall Space Flight Center, Redstone Arsenal, Huntsville, Alabama 35812,
[email protected] Abstract A human mission to Mars will occur at some time in the coming decades. When it does, it will be the end result of a complex network of interconnected design choices, systems analyses, technical optimizations, and non-technical compromises. This mission will extend the technologies, engineering design, and systems analyses to new limits, and may very well be the most complex undertaking in human history. It can be illustrated as a large menu, or as a large decision tree. Whatever the visualization tool, there are numerous design decisions required to assemble a human Mars mission, and many of these interconnect with one another. This paper examines these many decisions and further details a number of choices that are highly interwoven throughout the mission design. The large quantity of variables and their interconnectedness results in a highly complex systems challenge, and the paper illustrates how a change in one variable results in ripples (sometimes unintended) throughout many other facets of the design.