S1, E4: A space shuttle has 2.5 million parts and travels at over 7,000 meters per second. With armor that is designed to break and heat shields that are designed to burn, spacecraft technology is literally out of this world.

S1, E4: A space shuttle has 2.5 million parts and travels at over 7,000 meters per second. With armor that is designed to break and heat shields that are designed to burn, spacecraft technology is literally out of this world.