Space Shuttle Shuttle orbiter fleet. Sources: NASA launch manifest, NASA Space Shuttle archive On January 28, 1986, "Challenger" disintegrated 73 seconds after launch due to the failure of the right SRB, killing all seven astronauts on board. The disaster was caused by low-temperature impairment of an O-ring, a mission critical seal used between segments of the SRB casing. Failure of the O-ring allowed hot combustion gases to escape from between the booster sections and burn through the adjacent external tank, causing it to explode. Repeated warnings from design engineers voicing concerns about the lack of evidence of the O-rings' safety when the
Space Shuttle Columbia a salute, a celebration rather than just concentrating on a few moments of tragedy, but instead the bigger picture of these brave people's lives." The graphic novel "Orbiter" by Warren Ellis and Colleen Doran was dedicated to the "lives, memories and legacies of the seven astronauts lost on space shuttle "Columbia" during mission STS-107." Laurel Clark's wake up call on STS – 107 was Runrig's "Running to the Light". Laurel took "The Stamping Ground" CD into space with her and when the Shuttle exploded the CD was found back on Earth, and presented to the band. "Somewhere", the final track