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- [33] During the years NASA has been planning its Mars Sample Return mission, coders were busy charting an artificial intelligence revolution, while robotics engineers continued making ever more sophisticated machines. Is it time to consider analyzing the samples on Mars instead of bringing the rocks and dirt home to search for organisms or evidence of ancient life? The question is timely given that the estimated cost of Mars Sample Return has doubled and now threatens the political viability of the mission. Jon Kelvey asked the hard questions and learned the harsh realities. AEROSPACE AMERICA, 2024, 62 (01) : 28 - 35