If there was trouble with the descent to the moon, it would be possible to abort and return to the command module
. On the lunar surface, failure of the ascent engine would mean the end for two astronauts.
Once on track, the crew re-entered the command module
, which Mission Control had made plans to restart after it spent days in cold sleep.
In 1969, Motorola Solutions' S-Band transponders aboard the Apollo 11 lunar module and command module
transmitted telemetry, voice communications, biomedical data and television signals between the Earth and the Moon.
He was the man who stayed on board the command module
while his fellow astronauts were gallivanting around on the moon.
"On July 16, 1969, families and communities around the world watched in awe and trepidation as a trio of astronauts--Neil Armstrong, Buzz Aldrin, and Michael Collins--climbed into the command module
Columbia and left Earth on the first manned mission to land on the Moon.
pilot Michael Collins did not attend the Florida celebration.
Strapped in their couches inside the Command Module
were Mission Commander Neil A.
Australian teams at NASAs Honeysuckle Creek, Tidbinbilla and Carnarvon tracking stations played a key role tracking and communicating with the lunar module Eagle and command module
Columbia, and monitoring the Apollo 11 astronauts biomedical readings.
Most tell a great deal about the two astronauts who actually walked on the lunar surface, but there has been very little detail of the third man, Michael Collins, who was the Command Module
Collins, 88, who circled the moon alone in the command module
while Armstrong and Aldrin descended in the Eagle, told the president that he supports going directly to Mars and bypassing the moon.
17:56 Apollo 11 consists of the lunar module Eagle and the Command Service Module (CSM), which itself breaks down into the command module
Columbia and the service module.
During the mission, Collins remained in orbit in a command module
that would take them back home.