Space rocks & asteroid dust are pricey, but aren’t the most expensive materials used in science https://www.tucsonsentinel.com/opinion/report/102423_space_rocks_op/space-rocks-asteroid-dust-are-pricey-but-arent-most-expensive-materials-used-science/
NASA is collecting materials from asteroids to determine what could be valuable for extraction, and while space rocks and asteroid dust can be pricey, they aren't the most expensive materials used in science.
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