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Jan. 15, 2006: Stardust Touches Down

NASA’s Stardust mission, launched in February 1999, achieved the first successful comet sample‑return by flying past comet Wild 2 in January 2004 and capturing more than 10,000 dust particles with an aerogel collector. After a two‑year return trip, the sample‑return capsule re‑entered Earth’s atmosphere at 28,000 mph and parachuted to a landing in Utah’s desert on 15 January 2006. Laboratory analysis of the comet material revealed organic compounds and isotopic signatures that mirror those found in primitive meteorites, suggesting comets contributed essential building blocks of life. The mission’s technology and scientific insights have shaped subsequent sample‑return endeavors.