American astronauts flew to the moon seven times. Six times they landed on the moon, once because of a serious accident (Apollo 13) the flight was terminated and the landing did not take place. After that, new attempts to land on the moon was not undertaken.
There are two main versions of losing interest of a man to the moon: official and created by independent researchers on this issue. According to the official version, the program missions to the moon were very expensive, so it turned, as the main goal is to get ahead in the moon race, the Soviet Union was achieved. In the Soviet Union, after the defeat in the moon race, the main emphasis was placed on the study of the moon and other celestial bodies with the help of automatic stations.
According to the unofficial point of view, man left the moon because it this was "politely asked". There is some evidence that American astronauts landed on the moon, found it already occupied. The astronauts have seen these objects, it occurred as on the moon's orbit and on its surface. Further, according to the unofficial version, people unobtrusive given to understand that their presence on the moon is not desirable. After that, realizing that progress on by the time earthlings level of science and technology to compete with the moon alien took guests there is no way the American government hastily turned the research program and for several decades did not come back to this topic.
This version is fantastic. However, during the long decades of observations of the moon with telescopes recorded a number of phenomena that defy scientific explanation. There are videos, which are clearly seen moving above the surface of the moon objects. Some of them appear from one of the crater, moved over the surface and disappear in the other. What would be fantastic did not seem version presence on the moon another, non-human, life forms, it has a very documentary evidence.
With the beginning of the new century the return of the man on the moon are increasingly being discussed. What is the reason? That lunar exploration has become economically viable? Or the fact that people are once again allowed her to walk? A definite answer to this question is no. If you took the moon, alien visitors and there are some agreements, they are kept in the strictest confidence and are unlikely in the near future, declassified. Until then, you can testify about the intention to visit the moon in the next ten to fifteen years, say three countries: Russia, USA and China. A new moon race is on.