text: Fully loaded, the Inspiration Mars capsule would tip the scales at about 10 tons, so it could be lofted by either the Delta IV or Atlas V, well-established workhorses for launching large satellites and robotic exploration missions. The capsule would host about 600 cubic feet of living space and 600 cubic feet of cargo space. The capsule could include an inflatable module to expand living space, foundation representatives said, although that would add complexity to the craft. “There really are multiple options for basically every function we need” to pull off the mission, said MacCallum. Already the foundation has signed a Space Act agreement with the NASA Ames Research Center at Moffett Field, Calif., to tap its expertise on heat shields and reentry approaches.