STS-114 was the first "Return to Flight" Space Shuttle mission following the Space Shuttle Columbia disaster. The Space Shuttle Discovery launched at 10:39 a.m. EDT (14:39 UTC), July 26, 2005. The launch, 907 days (approx. 29 months) after the loss of Columbia, was approved despite unresolved fuel sensor anomalies in the external tank; those anomalies had prevented the shuttle from launching on July 13, its originally scheduled date.
