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NASA's Perseverance rover deposited the first of several samples onto the Martian surface on Dec. 21, 2022, the 653rd Martian day, or sol, of the mission. Perseverance has been taking duplicate samples from each rock target the mission selects. The rover currently has 17 samples in its belly, including one atmospheric sample. Based on the architecture of the Mars Sample Return campaign, the rover would deliver samples to a robotic lander carrying a small rocket that would blast them off to space. The depot will serve as a backup if Perseverance can't deliver its samples. In that case, a pai…
