History.com: 5 Terrifying Moments During the Apollo 11 Moon Landing Mission

The astronaut crew had to troubleshoot a series of problems throughout the historic 1969 flight. This historic exchange on July 20, 1969 marked the end of a perilous journey to the lunar surface, but a multitude of threats still faced the pair of NASA astronauts during their surface operations. despite arriving in one piece, the expert touchdown was by no means certain. Below are five of the scariest moments during Apollo 11.