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NASA's decision to send robotic missions like the Pathfinder Discovery Mission instead of astronauts to Mars was primarily due to safety, cost, and technological challenges. Robotic missions allow for extensive exploration and data collection without the risks associated with human spaceflight. Additionally, the financial resources required for a crewed mission to Mars are significantly higher, and the technology for safe human landings and returns is still under development. Robotic missions serve as a crucial step in understanding Mars and preparing for future human exploration.

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1mo ago

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