* Humans can land on the moon. Armstrong's mission also proved that humans could land on the moon, a feat that had never been accomplished before. This was a major milestone in human history, and it opened up the possibility of future missions to the moon and other planets.
* The moon is a barren, rocky world. Armstrong and Aldrin spent about two and a half hours exploring the lunar surface. They found that the moon is a barren, rocky world with no atmosphere, no liquid water, and very little vegetation. However, they also found that the moon is a fascinating place with a unique geology and history.
* Space travel is a complex and challenging endeavor. Armstrong's mission was a major success, but it was also a complex and challenging endeavor. It required the cooperation of thousands of people and the development of new technologies. Armstrong's mission showed that space travel is possible, but it also highlighted the challenges that must be overcome in order to make space travel routine.
* Exploration is essential for human progress. Armstrong's mission was a reminder of the importance of exploration. It showed that humans are capable of great things when they set their minds to it. Armstrong's mission also inspired a new generation of explorers, who are now working to push the boundaries of human knowledge and understanding.