Long before Michael Jackson had a moonwalk, there was a scientific moonwalk.
As Americans we like to celebrate firsts and even numbered anniversaries. July 20, 2009 is the 40th anniversary of man's first walk on the moon.
NASA has an excellent web page that tells about the Apollo 11 mission as well as other moon missions and current space programs.
Your library has many books on the history of scientific exploration of space. Try searching for Apollo mission, space shuttle, space missions, space exploration (just to name a few subjects) in the online catalog.
You will see a list of both nonfiction and fiction books of these subjects. Take your pick: non fiction if you like the science and history of space exploration, or a fiction book if you like to read about what could be.