This week we look at the remarkable achievements of the crew of Apollo 11, who 50 years ago this week traveled to the moon in one of the greatest technological achievements of the 20th century. Joining us to discuss the Apollo 11 anniversary is Rod Pyle, the editor-in-chief of Ad Astra, the official publication of the National Space Society, and author of a number of books that include Heroes of the Space Age, Space 2.0, Interplanetary Robots,and several others.