As I studied the space program in more detail, I was inspired by the brilliant and gutsy leadership of the early pioneers of the space program. For example, George Low was the low-key, unassuming Apollo spacecraft program manager. In April 1968, a Saturn V launched the unmanned Apollo 6 capsule. However, the rocket suffered excessive vibration so severe it would have injured any crew on board; two-second stage engines shut down and the third stage engine failed to re-light in orbit. After careful evaluation and fixes, Low decided that the next Saturn V launch would not only carry humans but take them all the way to the Moon for the first time – a gutsy but well-considered, rational decision. This mission, Apollo 8, sent the crew around the Moon and back in a highly successful and inspiring feat.