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.
Astronauts for the first Apollo Mission (L-R) Roger B. Chaffee Edward H. White and Virgil I. Grissom practice for the mission in the Apollo Mission Simulator. All 3 would perish in the Apollo launch pad fire Jan.