Apollo program life support system (PLSS) outside the LM. The F mission was successfully carried out on Apollo 10 in May 1969 by Gemini veterans Thomas P. Stafford, John Young and Eugene Cernan. Stafford and Cernan took the LM to within of the lunar surface. The G mission was achieved on Apollo 11 in July 1969 by an all-Gemini veteran crew consisting of Neil Armstrong, Michael Collins and Buzz Aldrin. Armstrong and Aldrin performed the first landing at the Sea of Tranquility at 20:17:40 UTC on July 20, 1969. They spent a total of 21 hours, 36 minutes on the surface, and
Buzz Aldrin that he thought Aldrin "resents not being first on the moon more than he appreciates being second." Aldrin and Armstrong did not have time to perform much geological training. The first lunar landing focused more on landing on the Moon and making it safely back to Earth than the scientific aspects of the mission. The duo were briefed by NASA and USGS geologists. They made one geological training expedition to west Texas. The press followed them, and a helicopter made it hard for Aldrin and Armstrong to hear their instructor. An estimated one million spectators watched the launch of Apollo