The Apollo program returned a total of 382 kilograms of lunar samples to Earth. The collection includes rocks, regolith, core samples, pebbles, sand, and dust gathered during six successful lunar landing missions between 1969 and 1972.
Apollo 11 brought back the first samples, including rocks and soil collected by Neil Armstrong and Buzz Aldrin. Later missions increasingly emphasized geology: Apollo 15, 16, and 17 used the Lunar Roving Vehicle to reach more distant sites and gather material from varied terrains. Apollo 17 returned the largest individual mission haul, roughly 110 kilograms.
The 382-kilogram figure is often expressed as about 842 pounds, and published totals may differ slightly because of rounding or how specific materials are classified. It does not mean Apollo returned 382 kilograms of only large rocks. Much of the scientific collection is fine regolith and soil, while carefully documented samples have been distributed to researchers worldwide. Their value comes from both their mass and the geological context recorded for every specimen.