Sample Return — 2 museum-grade prints that set the mood. OSIRIS-REx delivered the largest asteroid sample ever returned to Earth — 121. 6 grams of Bennu regolith that scientists are analyzing for clues to the solar system's formation and the origin of water and organic molecules on Earth. Genesis addressed a fundamental question — whether the Sun's isotopic composition matches the inner solar system's bulk material. Its L1 station kept the collector arrays outside Earth's magnetosphere for nearly two and a half years.

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