Space Shuttle Essay

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At 9 a.m. on February 1st, 2003, disaster struck the space shuttle program: Columbia had disintegrated upon re-entry into Earth’s atmosphere just 16 minutes before it was supposed to land at Kennedy Space Center (National Geographic News par 2-3). The shuttle had been damaged by little more than foam from the external tank but it was enough to make it susceptible to the high temperatures it faced as it descended through the atmosphere. The idea that a space shuttle can endure damage that is unforeseen or unavoidable is well within reason. However, in retrospect it was found that foam strikes were present on most shuttle missions and NASA had a history of diminishing their recognized danger in favor of increasing the chances of meeting mission …show more content…

Video from the launch was examined by the Intercenter Photo Working Group, as is done for every shuttle mission. It showed a chunk of foam from the left bipod ramp on the external tank detaching and striking somewhere on the left wing of the orbiter at 81.9 seconds after liftoff, but not much more could be seen. The concern of possible damage that could not be detected from the video footage caused them to request an image of the space shuttle while still in orbit and spurred the creation of a Debris Assessment Team to review the extent of the damage further. There were multiple requests to image the damaged left wing from engineers to the program managers, all of which were rejected. Therefore, the Debris Assessment Team could only use computer simulations, though inadequate, to assess the damage to the shuttle. Still, they concluded that “localized heating damage would most likely occur during re-entry,” although this was not enough to convince the program managers that it was a pressing issue (CAIB …show more content…

In fact, damage from foam strikes had been documented on most shuttle missions, although the damage to Columbia during STS-107 was the most severe. The Colombia Accident Investigation Board (CAIB) reported that there were an average of 146 divots in the heat shield after each mission, 31 having a diameter greater than one inch, and most of them being caused by foam impacts (rather than ice, birds, or other debris). Despite the shuttle having been designed with a tolerance of “impacts with a kinetic energy less than 0.006 foot-pounds,” the foam strikes came to be seen as a “maintenance issue,” rather than a serious problem because it did not seem to have any significant effect (CAIB

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