How many kilograms of lunar samples did Apollo 17 return?

Apollo 17 returned 110.5 kilograms of lunar samples to Earth.

The mission’s astronauts—Eugene Cernan, Harrison Schmitt, and Ronald Evans—returned from the Moon in December 1972. Cernan and Schmitt explored the Taurus–Littrow valley, using the lunar roving vehicle to travel farther from their landing site and collect material from several geological settings.

Apollo 17 was the final crewed lunar-landing mission and the most productive Apollo sample-return mission. The collection included rocks, soil, rake samples, and core material. NASA records commonly give the total as 110.4 or 110.5 kilograms depending on rounding and accounting conventions; 110.5 kg is the accepted quiz answer.

The 382-kilogram figure is a frequent trap: it represents the approximate combined mass returned by all six Apollo lunar-landing missions, not Apollo 17 alone. Apollo 17 also set the program’s record for lunar surface exploration, including about 75 hours on the Moon.