What We Learned from the Apollo 1 Fire

The video discusses the dangers of space travel, focusing on the Apollo 1 tragedy in 1967, where three astronauts lost their lives due to a fire during a test. The fire was caused by an electrical failure in a pure oxygen environment. NASA's investigations led to significant engineering and organizational changes, including using a safer gas mix and non-flammable materials, and overhauling safety procedures. These changes have made spaceflight safer, though it remains inherently risky.

What was the composition of the atmosphere inside the capsule during the launch after the changes made by NASA?

Describe the significance of the Apollo 1 fire in the context of NASA's approach to safety.