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Loading contentThe strategy of returning to the Moon first, and using it as a proving ground for the systems and skills needed to send crews to Mars. Under this integrated approach the Artemis missions and the Lunar Gateway are steps toward a longer campaign, testing habitats, life support, and surface operations close to home before the far harder journey to Mars.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.