what is apollo 17?
The final Moon landing mission of NASA's Apollo program, and remains the most recent time humans have travelled beyond low Earth orbit.
Apollo 17
Apollo 17 (December 7–19, 1972) was the final Moon landing mission of NASA's Apollo program, and remains the most recent time humans have travelled beyond low Earth orbit. 
when was the last time somebody landed on the moon December 19, 1972
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Apollo 17 [SEP] Introduction
Apollo 17 (December 7–19, 1972) was the final Moon landing mission of NASA's Apollo program, and remains the most recent time humans have travelled beyond low Earth orbit. Its crew consisted of Commander Eugene Cernan, Lunar Module Pilot Harrison Schmitt, and Command Module Pilot Ronald Evans, and it carried a biological experiment containing five mice. Launched at 12:33 a.m. Eastern Standard Time (EST) on December 7, 1972, Apollo 17 was a "J-type mission" that included three days on the lunar surface, extended scientific capability, and the use of the third Lunar Roving Vehicle (LRV). Cernan and Schmitt landed in the Taurus–Littrow valley and completed three moonwalks, taking lunar samples and deploying scientific instruments.