Apollo 10 was the fourth manned mission in the United States’ Apollo program and the second mission to orbit the moon. The mission was launched in May 1969, just a few months before the historic Apollo 11 mission, which would land humans on the moon for the first time.
The Apollo 10 crew consisted of astronauts Thomas P. Stafford, John W. Young, and Eugene A. Cernan. During the mission, the astronauts orbited the moon and conducted a number of scientific experiments and tests to prepare for the upcoming lunar landing.
One of the main objectives of the Apollo 10 mission was to test the lunar module, the spacecraft that would eventually carry astronauts to the surface of the moon. The lunar module was successfully tested during the mission, and the astronauts were able to perform a simulated lunar landing, coming within just a few miles of the surface before returning to orbit.
Overall, the Apollo 10 mission was considered a success and helped pave the way for the historic Apollo 11 lunar landing mission just a few months later.