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The agreement commits Nasa to offer SpaceX help with deep space navigation and communications, design of the spacecraft’s linepathtracktrajectory trajectory and help with developing the landing system. The SpaceX mission will use a version of the Dragon spacecraft that currently flies to the International Space Station under SpaceX’s resupply contractsdealsconnectrelate contracts with Nasa. As part of work to develop a version of the capsule that can carry astronauts, SpaceX has developed and tested motors that allow the craft to make a safe landing on earth in the event of an emergency during take-off. SpaceX would adapt that system to allow the craft to touch down on Mars.