Shortly after midnight, 50 years ago this morning, the Apollo 17 mission lifted off from Florida. With Gene Cernan, Harrison Schmitt, and Ron Evans on board, this was NASA’s sixth and final spaceflight to the lunar surface.

Cernan and Schmitt spent three days on the Moon, setting records for the longest distance traversed in their rover—7.6 km—and the amount of lunar rocks returned. But today, what the mission is perhaps most remembered for is the fact that it was the last time humans landed on the Moon—or even went beyond low Earth orbit.

Memorably, before he boarded the Lunar Module to blast off from the Moon’s surface, Cernan radioed back to Mission Control on Earth. People, he said, would return to the Moon “not too long into the future.” Speaking to him much later in life, it was clear from Cernan’s frustrations that he did not mean decades into the future.