News flash:
People's Daily Online reports: On the 6th, the independent commission responsible for investigating the mystery of the breakup of the U.S. space shuttle "Columbia" announced for the first time that, after a comprehensive analysis of all kinds of data, all sides agreed that the shuttle's left wing was struck during liftoff by foam insulating material that had fallen off the fuel tank. As a result, a large area of the thermal protection layer on the surface of the craft became loose and damaged, ultimately causing "Columbia" to completely break up on February 1 this year during reentry when superheated air penetrated the vehicle, killing all seven astronauts. Previously, although experts had continually used the above theory to explain and speculate on the direct cause of the "Columbia" accident, the investigation committee had always called on the relevant departments to "keep calm and not draw conclusions too early."
Final-stage data obtained from the sensors on "Columbia"'s left wing showed that after the shuttle reentered the atmosphere on its return trip and passed over Hawaii, superheated air began to penetrate the "delicate parts" inside the craft through a gap formed at the impact site, and directly destroyed "Columbia" completely from the inside. The National Aeronautics and Space Administration (NASA) also admitted for the first time that during liftoff, the shuttle had indeed been struck by a foreign object, creating on its surface "a hole that let hot gas enter." The data showed that 84 seconds after launch, the data returned from the left wing had already become abnormal. TV footage showed that two seconds earlier, a piece of foam material the size of a safe had just struck the craft.
After that, data returned by the sensors at the front edge of the wing showed that the temperature there had risen slightly, something that had never occurred in previous launches. Although this "temperature rise phenomenon" looked very ordinary, after analyzing it together with other data, experts pointed out that damage to the surface of the craft may already have appeared at that time. Therefore, it can be said that the disaster during the return trip had already been planted when "Columbia" lifted off. In addition, the investigation committee also suspects that NASA did not give sufficient attention to the damage caused to the shuttle's surface protection layer by repeated flight missions. Over the past few months, there have been constant rumors that empiricism was rampant within NASA authorities, and that they were overly optimistic in assuming that the shuttle could "withstand the test" and return safely.
NASA's report says that no matter what kind of "remedial work" the crew of "Columbia" carried out before reentry, this spacecraft, which had "already suffered heavy damage at liftoff," could not have avoided breaking up when reentering the atmosphere. The report says that even if the 16 tons of "nonessential supplies" carried on the shuttle before reentry (scientific experiment instruments, water, and other equipment) had all been discarded in space, it would only have lowered the surface temperature by about 7%, so it could not possibly have changed the tragic outcome of the craft's destruction and the crew's deaths. In addition, it was said that successfully discarding these "extra" supplies would have required the astronauts to perform two very difficult "spacewalks," something that was simply impossible on this flight, whose schedule was already extremely full.
In addition, NASA revealed that hundreds of worms that had "accompanied" the astronauts into space for scientific experiments had actually survived the breakup of "Columbia." After going through multiple ordeals including extreme heat, fierce fire, and high-speed impact with the ground, they still became the "only surviving organisms" found in the wreckage, and continued to "produce offspring" under completely sealed conditions. NASA emphasized that the U.S. space shuttles, which had all been grounded because of the "Columbia" accident, might return to space by the end of this year carrying four astronauts to continue related exploration activities. It is reported that the relevant side will issue a final report on the Columbia accident this summer, and formulate practical and reliable remedial measures for the remaining three U.S. space shuttles.
People's Daily Online reports: On the 6th, the independent commission responsible for investigating the mystery of the breakup of the U.S. space shuttle "Columbia" announced for the first time that, after a comprehensive analysis of all kinds of data, all sides agreed that the shuttle's left wing was struck during liftoff by foam insulating material that had fallen off the fuel tank. As a result, a large area of the thermal protection layer on the surface of the craft became loose and damaged, ultimately causing "Columbia" to completely break up on February 1 this year during reentry when superheated air penetrated the vehicle, killing all seven astronauts. Previously, although experts had continually used the above theory to explain and speculate on the direct cause of the "Columbia" accident, the investigation committee had always called on the relevant departments to "keep calm and not draw conclusions too early."
Final-stage data obtained from the sensors on "Columbia"'s left wing showed that after the shuttle reentered the atmosphere on its return trip and passed over Hawaii, superheated air began to penetrate the "delicate parts" inside the craft through a gap formed at the impact site, and directly destroyed "Columbia" completely from the inside. The National Aeronautics and Space Administration (NASA) also admitted for the first time that during liftoff, the shuttle had indeed been struck by a foreign object, creating on its surface "a hole that let hot gas enter." The data showed that 84 seconds after launch, the data returned from the left wing had already become abnormal. TV footage showed that two seconds earlier, a piece of foam material the size of a safe had just struck the craft.
After that, data returned by the sensors at the front edge of the wing showed that the temperature there had risen slightly, something that had never occurred in previous launches. Although this "temperature rise phenomenon" looked very ordinary, after analyzing it together with other data, experts pointed out that damage to the surface of the craft may already have appeared at that time. Therefore, it can be said that the disaster during the return trip had already been planted when "Columbia" lifted off. In addition, the investigation committee also suspects that NASA did not give sufficient attention to the damage caused to the shuttle's surface protection layer by repeated flight missions. Over the past few months, there have been constant rumors that empiricism was rampant within NASA authorities, and that they were overly optimistic in assuming that the shuttle could "withstand the test" and return safely.
NASA's report says that no matter what kind of "remedial work" the crew of "Columbia" carried out before reentry, this spacecraft, which had "already suffered heavy damage at liftoff," could not have avoided breaking up when reentering the atmosphere. The report says that even if the 16 tons of "nonessential supplies" carried on the shuttle before reentry (scientific experiment instruments, water, and other equipment) had all been discarded in space, it would only have lowered the surface temperature by about 7%, so it could not possibly have changed the tragic outcome of the craft's destruction and the crew's deaths. In addition, it was said that successfully discarding these "extra" supplies would have required the astronauts to perform two very difficult "spacewalks," something that was simply impossible on this flight, whose schedule was already extremely full.
In addition, NASA revealed that hundreds of worms that had "accompanied" the astronauts into space for scientific experiments had actually survived the breakup of "Columbia." After going through multiple ordeals including extreme heat, fierce fire, and high-speed impact with the ground, they still became the "only surviving organisms" found in the wreckage, and continued to "produce offspring" under completely sealed conditions. NASA emphasized that the U.S. space shuttles, which had all been grounded because of the "Columbia" accident, might return to space by the end of this year carrying four astronauts to continue related exploration activities. It is reported that the relevant side will issue a final report on the Columbia accident this summer, and formulate practical and reliable remedial measures for the remaining three U.S. space shuttles.
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