On April 11, 1970, at 13:13 CST Apollo 13 was launched from the Kennedy Space Center, Florida, but the lunar landing was aborted after an oxygen tank exploded two days later, crippling the service module upon which the Command Module depended. Despite great hardship caused by limited power, loss of cabin heat, shortage of potable water, and the critical need to jury-rig the carbon dioxide removal system, the crew returned safely to Earth on April 17.
On December 11, 1972, 05:33:00 UTC, Apollo 17 with Commander Eugene A. Cernan, Command Module Pilot Ronald E. Evans, and Lunar Module Pilot Harrison H. Schmitt landed in the Taurus-Littrow valley on the lunar surface and were (so far) the last men to set foot on the Moon. Apollo 17 was the eleventh and final mission of the United States' Apollo program, the sixth mission to land humans on the Moon.