Getting to the moon was no easy feat, no matter how confident Kennedy may have sounded in his famous 1961 speech. NASA built a team from the ground up, and there were plenty of moments where it seemed as if they weren't going to make it. Fong tells stories of just how close they came, and how risky it was. After all, it was hard to feel safe when a pen could go straight through the module. Kevin Fong is incredible. As Dan fawns in the podcast, he's part of the NHS emergency response team for major fatality incidents like terror attacks, he's an anaesthetist, he's a lecturer in physiology at UCL and an expert in space medicine. He's currently running a podcast about the Apollo program, which is 50 years old this year, and Dan gets a sneak peek. Producer: Peter Curry