From left, Apollo 1 astronauts Virgil I. "Gus" Grissom, Edward White and Roger Chaffee pose in front of their Saturn 1 launch vehicle at Launch Complex 34 at the Kennedy Space Center. The astronauts later died in a fire on the pad.
Apollo Astronauts Virgil "Gus" I. Grissom, Edward H. White II, and Roger B. Chaffee were to pilot the first manned Apollo mission. Tragically, during launch pad testing, a fire would asphyxiate the team.
the crew of Apollo 1 was killed when fire engulfed their spacecraft during a ground test. The disaster stalled America's race to the moon for a year and a half. See how the Apollo 1 fire tragedy happened in our full infographic.