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
Buzz Aldrin (CMP) and Aldrin as Lunar Module Pilot (LMP). Their assignment as the backup crew of Apollo 9 was officially announced on November 20, 1967. Due to design and manufacturing delays in the lunar module (LM), Apollo 8 and Apollo 9 swapped prime and backup crews, and Armstrong's crew became the backup for Apollo 8. Under the normal crew rotation scheme, Armstrong was then expected to command Apollo 11. Michael Collins, the CMP on the Apollo 8 prime crew, experienced trouble with his legs that doctors diagnosed as a requiring surgery. Lovell took his place on the Apollo 8 crew. When