The most tragic of the Apollo missions, Apollo 1 was the only Apollo mission to result in loss of crew. On January 27, 1967 during a capsule only test, a fire in the pure oxygen environment killed the crew.

In honor of the crew the mission name was retired and the patch designed by the crew remained in the official insignia of the mission.

A few statistics:

• Crew: Virgil I. "Gus" Grissom, Ed White, and Roger B. Chaffee

• Launch Vehicle: Saturn IB

• Date: planned February 21, 1967