Humans to Mars: A feasibility and cost–benefit analysis by Ehlmann, Bethany L., Chowdhury, Jeeshan, Marzullo, Timothy C., Eric Collins, R., Litzenberger, Julie, Ibsen, Stuart, Krauser, Wendy R., DeKock, Brandon, Hannon, Michael, Kinnevan, Jessica, Shepard, Rebekah, Douglas Grant, F.

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