Why didn't man go to moon for last 32 years? Are they afraid of Aliens

my guess is, the cost of going there is so much and the results we learn cannot be made known cause of our laws, nasa came to the conclusion that they would study another area of space. and the space shuttle program was started. Landing on the moon does not seem to be very important, so, nasa is studying ways of what should be done once we land on the moon as a way of supporting other areas in space that people would like to visit or watch.

Very simple: lack of money. Congress cut NASA's funding after the sixth lunar landing in 1972 because the public seemed to have lost interest in the Moon and the "space race" with the Soviet Union had been won. It was tragically bad timing, because Apollo 17 in 1972 was the _first_ Apollo voyage to have a trained scientist, Harrison Schmitt, on board, and was supposed to be the first of three scientific expeditions.

More was learned about the Moon and its history in that voyage than in the previous 5 put together, and much more would have been learned if the two next voyages had been funded. Instead the US space program was redirected into the boondoggle of the shuttle and space station programs, neither of which has made much contribution to science.

Whenever this question is asked, some people reply that we now know everything there is to know about the Moon. What a ridiculous idea! How can anyone say that we learned everything about a place with almost as much dry land as the Earth in six visits of a few hours or days?

No. The US didn't go back to the moon after Apollo 17 due to budget cuts.
And by the 6th mission, the general public wasn't interested enough to approve funding (the Vietnam War, Watergate, and other political issues were more important at the time).