This is a part of the space program that makes for uneasy discussion yet this series does an excellent job of it. It gives a real inside look into how errors can cascade into disaster which is always sad and regrettable. Simply put the pursuit of space exploration is infinitely complex and dangerous which isn't glossed over here. But there is the spirit itself of doing whatever it takes to make the pursuit as safe and successful as possible which makes this series quite amazing. That includes exhaustive learning from mistakes and brilliant ingenuity that rises from failure. This is a must-see for those who have an interest in both the history and the future of our space program."