Feasibility Analysis for a Manned Mars Free-Return Mission in 2018 Dennis A. Tito Grant Anderson John P. Carrico, Jr. Wilshire Associates Incorporated Paragon Space Development Applied Defense Solutions, Inc. 1800 Alta Mura Road Corporation 10440 Little Patuxent Pkwy Pacific Palisades, CA 90272 3481 East Michigan Street Ste 600 310-260-6600 Tucson, AZ 85714 Columbia, MD 21044
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[email protected] [email protected] Abstract—In 1998 Patel et al searched for Earth-Mars free- To size the Environmental Control and Life Support System return trajectories that leave Earth, fly by Mars, and return to (ECLSS) we set the initial mission assumption to two crew Earth without any deterministic maneuvers after Trans-Mars members for 500 days in a modified SpaceX Dragon class of Injection.