NASA's complete participation in the production lends to its total authenticity, right down to the use of NASA equipment, launch locations, and even spacecraft. The re-creation of the lunar landscape is almost as impressive as the real thing and is further enhanced by the use of helium balloons to lighten the actors playing moon-walking astronauts. (These and other backstage details are revealed in the "making of" featurette, along with a wealth of supplemental materials, on a bonus disc in the miniseries' DVD package.) With a fictional, Walter Cronkite-like TV reporter (Lane Smith) serving as the dramatic link for all 12 episodes, this ambitious production may not be a great work of art. But as a generous and definitive example of nonfiction drama, it's full of the same kind of awe, inspiration, and humanity that led to "one giant leap" in the all-too-short history of 20th-century space exploration. --Jeff Shannon