312 lines
18 KiB
Plaintext
312 lines
18 KiB
Plaintext
ÜÜÜÜÜÜÜÜÜÜÜÜÜ ÜÜÜ ÜÜÜÜ
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ÜÛÛÛÛÛÛÛÛßÛßßßßßÛÛÜ ÜÜßßßßÜÜÜÜ ÜÛÜ ÜÛÛÛÛÛÛÛÛÜÜÜÜÜÛßß ßÛÛ
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ßÛÛÛÛÛÛÛÛÛÛÛÛÛÛÜ ßÛÛ ÜÛÛÛÜÛÛÜÜÜ ßÛÛÛÛÜ ßÛÛÛÛÛÛÛÜÛÛÜÜÜÛÛÝ Ûß
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ßßßÛÛÛÛÛÛÛÛÛÛÜ ÞÝ ÛÛÛÛÛÛÛÛÛÛÛßßÛÜÞÛÛÛ ÛÛÛÛÛÜ ßßÛÛÛÞß
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Mo.iMP ÜÛÛÜ ßÛÛÛÛÛÛÛÝÛ ÞÛÛÛÛÛÛÛÛÛ ÞÛÛÛÛ ÞÛÛÛÛÛÝ ßÛß
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ÜÛÛÛÛÛÛÛ ÛÛÛÛÛÛÛÛÝ ÞÛÛÛÛÛÛÛÛÝ ÛÛÛ ÛÛÛÛÛÛ
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ÜÛÛÛÛÛÛÛÝ ÞÛÛÛÛÛÛÛÛ ÞÛÛÛÛÛÛÛÛ ß ÞÛÛÛÛÛÛÜ ÜÛ
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ÜÛÛÛÛÛÛÛÝ ÛÛÛÛÛÛÛÛ ÛÛÛÛÛÛÛÛÝ ÞÞÛÛÛÛÛÛÛÛÛß
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ÜÛßÛÛÛÛÛÛ ÜÜ ÛÛÛÛÛÛÛÛÝ ÛÛÞÛÛÛÛÛÝ ÞÛÛÛÛÛÛßß
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ÜÛßÛÛÛÛÛÛÜÛÛÛÛÜÞÛÛÛÛÛÛÛÛ ÞÛ ßÛÛÛÛÛ Ü ÛÝÛÛÛÛÛ Ü
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ÜÛ ÞÛÛÛÛÛÛÛÛÛÛß ÛÛÛÛÛÛÛÛÛ ßÛÜ ßÛÛÛÜÜ ÜÜÛÛÛß ÞÛ ÞÛÛÛÝ ÜÜÛÛ
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ÛÛ ÛÛÛÛÛÛÛÛß ÛÛÛÛÛÛÛÛÛÛÜ ßÛÜ ßßÛÛÛÛÛÛÛÛÛß ÜÜÜß ÛÛÛÛÜÜÜÜÜÜÜÛÛÛÛÛß
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ßÛÜ ÜÛÛÛß ßÛÛÛÛÛÛÛÛÛÛÜ ßßÜÜ ßßÜÛÛßß ßÛÛÜ ßßßÛßÛÛÛÛÛÛÛßß
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ßßßßß ßßÛÛß ßßßßß ßßßßßßßßßßßßß
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ARRoGANT CoURiERS WiTH ESSaYS
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Grade Level: Type of Work Subject/Topic is on:
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[ ]6-8 [ ]Class Notes [Effects of the Space ]
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[ ]9-10 [ ]Cliff Notes [Shuttle Challenger ]
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[ ]11-12 [x]Essay/Report [ ]
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[x]College [ ]Misc [ ]
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Dizzed: 10/94 # of Words:2735 School: ? State: ?
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ÄÄÄÄÄÄÄÄÄ>ÄÄÄÄÄÄÄÄÄ>ÄÄÄÄÄÄÄÄÄ>Chop Here>ÄÄÄÄÄÄÄÄÄ>ÄÄÄÄÄÄÄÄÄ>ÄÄÄÄÄÄÄÄÄ>ÄÄÄÄÄÄÄÄÄ
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What was the effect of the Space Shuttle Challenger
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Disaster on NASA and the Future of the United States Space Program?
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This was the major question proposed during the late 1980's. What was the
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future of NASA going to be after this terrible disaster? Would there be
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enough funding for the continuation of the United States Space Program?
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This Challenger explosion was one of the major catastrophes of the entire
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Space Program since the beginning of funding for the Space Program was
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started. It seems, out of all the mistakes that NASA and the United States
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government has ever made, this one made a lasting impression on many
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Americans, and foreign authority figures all over the world.
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The Space Shuttle Challenger disaster was a major tragedy. However,
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it was a tragedy that could have been prevented with a closer inspection of
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one of the shuttle's parts that had been of concern since the entire Space
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Shuttle Program had been started; the O-Ring. Inside the Solid Rocket
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Booster, there exists certain seals which were the rubber O-rings. The
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objective of the O-rings is to act as a seal that is meant to prevent gases
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from escaping through the Solid Rocket Booster. One of the main reasons
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for the explosion was that O-ring "flexed" and let the gases escape, which
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in less than seconds later, caught fire and created the explosion.
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Among the other minor problems were those of electrical problems and
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faulty gages which were just "overlooked" because the problems were only
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minor and they posed no real threat to the safety of the mission or the
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crew of seven(7).
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11:39:17am, Tuesday, January 28th, 1986. As the Space Shuttle
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Challenger soared into the sky that morning, 74 seconds into flight, it
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exploded, killing all 7 crew members on board including one High-School
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teacher. This was the worst accident in the history of the U.S. Space
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Program. It was witnessed by thousands of spectators and visitors who
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watched at the Space Shuttle Challenger exploded before their eyes.
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Among the crew killed were: Francis R. Scobee, Commander; Michael J.
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Smith, Pilot; Judith A. Resnick, Electrical Engineer; Ellison S. Onizuka,
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Engineer; Ronald E. McNair, Physicist; Gregory R. Jarvis, Electrical
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Engineer; Christa McAuliffe, High-School teacher. For most of the crew, it
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was just an ordinary mission with the exception of the school teacher. For
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Christa McAuliffe, it was everything out of the ordinary. She was the one
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out of many applicants that had the opportunity to ride in the Space
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Shuttle to help teach children all over the country about the experiments
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she was going to accomplish in space. As the spectators at Kennedy Space
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Center watched, everyone was in disbelief including many of the technicians
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inside the control room communicating with Francis Scobee, the Commander of
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the Shuttle Challenger. This experience is best described through a
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passage between Challenger and the Control Room which occurred as this:
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"Challenger lifted off...and passed Mach One, the speed of sound, at
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19,000 feet. The computers throttled back the three main engines to 65
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percent of thrust, anticipating the stress that the engineers call Max-Q,
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maximum aerodynamic pressure.
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'Okay, we're throttling down,' Scobee reassured his crew as the thrust
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dropped.
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For fourteen seconds they swayed and jolted silently in their seats
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while the shuttle chopped through wind shear.
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'Throttling up', Scobee called, watching the bright lines of his
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flight data screen.
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'Throttle up', Smith confirmed from his own instruments
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'Roger', Dick Scobee formally acknowledged.
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'Feel that mother go', Smith called, noting the violent surge of
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power. As the Challenger climbed, its computers processed millions of bits
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of data, sifting, sorting, and sending it down to the Cape where it was
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instantly re- transmitted to the Mission Control Room at Johnson Space
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Center in Texas. Inside the control room, the technicians saw that the
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Challenger's engines had returned normally to full thrust, and that the
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ascent was proceeding perfectly. CAPCOM Richard Covey hunched at his
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console, his face tight with concentration. 'Challenger",... "go at
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throttle up."
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On Challenger's noisy flight deck, Commander Scobee punched his
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transmit button and replied, 'Roger, go at throttle up.'
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It was exactly seventy seconds after lift-off. The Shuttle was near
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50,000 feet...but in the next three seconds Challenger slammed through
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increasingly violent maneuvers. Mike Smith voiced sudden apprehension.
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'Uh-oh.'
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In Mission Control, the pulsing digits on the screens abruptly
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stopped. At the top of each console screen, a frozen while "S" was now
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centered. Static, no down-link. Challenger was dead.
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Mission Control spokesman Steve Nesbit sat...he stared around the
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silent, softly lit room. The red trajectory line was stationary on the
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display screen. Finally, he spoke: 'Flight controllers here are looking
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very carefully at the situation. Obviously a major malfunction." (Excerpts
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from Challenger, a Major Malfunction, McConnell, Introduction.)
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This was one of the more moving at sensitive words spoken at the time
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which showed the disbelief many had and how such a mistake could have been
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made.
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The deaths of the astronauts lie in the memories of many, including
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students across the country and the world. Christa McAuliffe's parents
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called them all "heroes" and that they have grief and condolences for all
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people effected everywhere by the tragedy. McAuliffe's parents were
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thankful that their lives were kept private during this hard time, and they
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said that even with this terrible disaster, life must go on.
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Across the seas, there was also feelings of sorrow and disbelief.
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Pope John Paul II at the Vatican on January 30th, 1986 at the Vatican he
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talked and comforted the people about the loss of the American astronauts.
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He talked to the people, and made this lasting preach: "I lift up to God a
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fervent prayer so that he accepts in his embrace the souls of these
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courageous pioneers in progress of science and of man." (The New York
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Times, Jan. 30th, 1986; A16)
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Along with the Pope, Col. Muammar el-Qaddafi sent his "personal
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condolences" to the families and friends of the American astronauts. "It
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is a very sad day, not only for all Americans, but for all humanity." (NY
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Times, Jan. 30th, 1986; A16).
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Mikhail S. Gorbachev also sent condolences over to the United States
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for the death of the seven astronauts. From quotes from the Soviet people,
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they had high expectations of American technology and were devastated that
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such a tragedy could occur. Showing support, they have not lost faith,
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claims a citizen in Russia.
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For Americans especially, it was a sad and mournful day. Many
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Americans were thankful of the warm and thoughtful condolences that many of
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the foreign nations of the world sent to the United States for support.
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Among the most surprised commentator, was Muammar Quadaffi due to the
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feelings of unrest that the United States had toward Libya and vice versa.
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Overall, Americans were pleased and thankful of the support they received
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across the world to deal with the deaths.
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Many people were especially hopeful about the health statistics of the
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astronauts. They hoped that the crew could have survived the 10 mile
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decent into the ocean at speeds of over 400 mph. This could have been a
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possibility at first, since technicians believed that since the explosion
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occurred in the rear of the shuttle, the cabin might still be in tact, yet
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the astronauts would probably be unconscious. However, this was not the
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case. NASA officials speculate that either the astronauts died in the
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shuttle in the air, or they were unconscious and died from impact into the
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water or drowning. The body remains were later airlifted to Houston where
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they received a proper burial.
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After peoples' feeling had calmed to a certain degree, NASA and the
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United States Government began the tedious task of trying to find out what
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exactly caused the explosion. At first thoughts, NASA workers believed
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that there was a hydrogen gas leak from the huge external fuel tank which
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carried 350,000 gallons of liquid hydrogen and more than 140,000 gallons of
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liquid hydrogen which could have acted as a "small" hydrogen bomb. After
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weeks and months of investigations, it was found that along with a slight
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hydrogen gas leak, the main cause of the explosion was the O- ring which
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was vital to the Space Shuttles. When the O-ring failed, it seals in the
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sub-zero temperatures to which the Shuttles stack was exposed to. (Shuttle
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Challenger, 50.) Accompanying the temperatures, the hydrogen mixed with
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that causing the explosion which killed all 7 crew member aboard.
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Contrary to what people had originally thought, there were no human
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errors to be found in the transcripts. According to the transmission
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between Commander Scobbe and the Houston and Kennedy Space Center
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technicians, everything was fine in terms of communications, and the "...go
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with throttle up" (as described in the transcript of the communications)
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was a "normal" adjustment that would occur on any other shuttle at any
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other given time. When the "...go with throttle up" commenced, the
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pressure for the O-ring was to great, letting the hydrogen leak out, thus
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causing the explosion.
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The weather conditions might also have been a factor. There was a cold
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front coming into the area which did make the air temperature very cold for
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Florida weather. There were actually icicles hanging from the launch pad
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at Kennedy Space Center. This was another of the contributing factors. If
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there is cold enough temperatures to have ice, then the shuttle should not
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have been launched for two main reasons. First, that a shuttle has never
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before been launched in such cold temperatures and second, that some parts,
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such as the faulty O-ring would not stand the pressure of the coldness.
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At first, after the Challenger exploded, either everyone was blaming
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everyone else, or no one knew who to point the finger at. The only people
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to turn to were the makers of the Shuttles.
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Rockwell Corporation was one of the companies involved in the building
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of the Space Shuttles. This organization was in charge of building the
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major shuttle parts including the fuselage, and the pay-load doors. This
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corporation earned about $3 for building the four shuttles operating at the
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time; Columbia, Challenger, Discovery and Atlantis.
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Martin Marietta Corporation was another company involved in the
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building of the shuttles. They build the huge external fuel tank which was
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part of the cause of the disaster of the Challenger.
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Morton Thiokol Inc. was the nation's leading supplier for the
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solid-fuel rocket boosters. Even though the sold- fule rocket booster were
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not believed to be a cause of the disaster, they were still questioned and
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reported about back to NASA.
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Lockheed was not of major concern to NASA for evidence of the disaster
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because Lockheed was basically responsible for the maintenance of the
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shuttle such as cleaning, maintaining, and testing the shuttles before
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every launch. Their tests were checked for structural damage of parts of
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the shuttle, but they were later dismissed.
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Grumman corporation, like Lockheed was also somewhat dismissed of any
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fault in the explosion due to the parts that they specialize in. Grumman
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only builds the wings for the shuttles which were of no concern in the
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disaster since they were working up to order.
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Among other companies dismissed of any wrong-doings in building parts
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or supervision were General Dynmaics, Boeing, and McDonnel Douglass
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Corporation.
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The Future of NASA was the main question that was discussed after the
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disaster. After the Challenger disaster, there were no more shuttle
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flights of any kind for over eighteen months. NASA wanted to "re-group"
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and re-design some parts that they think would have tremendous improvements
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to the entire shuttle fleet. Some of the parts that were re- designed were
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parts of the Main External Tank, the Solid Rocket Boosters, and the O-ring.
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The major disadvantage that the Space Shuttle Challenger had, along with
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the Columbia, was that since they were the first two shuttles produced,
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they had 1970's technology designing. Thus, improvements could have, and
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needed to be made.
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The next question on NASA's mind was that should their be another
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budget for a new shuttle. Among the remaining shuttles (from oldest to
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newest) were: Enterprise (a test- shuttle only, has never been in orbit.),
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Columbia (still operational), Challenger (destroyed), Discovery, (still
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operational), and Atlantis (still operational). These three main shuttles
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could serve NASA through the 1990's, but after that would be too difficult.
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The primary objective of NASA in the early 1970's was to have a space
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station (which is still the idea) called Freedom in the year 2020. The
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shuttles would not be able to last that long by only having three working
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ones. So, NASA asked Congress for funds to build a forth working shuttle.
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Congress leaders supported the idea of building a new shuttle, but they
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believed that budget restrictions might hinder the effort. Representative
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Edward P. Boland of Massachussetts (D) stated that "...I would have a forth
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orbiter...I don't think NASA can meet its requirements for the space
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flights without it." (NY Times, Jan. 30th, 1986; A16). A new space
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vehicle would cost about $2 billion dollars. (NOTE: At this time during
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1986, no immediate funding was given to NASA for a fourth shuttle. However,
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in 1989, a new shuttle was being built called the Endeavour, which would be
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America's best and last shuttle. Best, because it has better technology
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than the other shuttles. Last, because the four shuttles are designed for
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one-hundred missions each, and they would all last until the year 2020 when
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the Space Station Freedom is to be built.)
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Eighteen months after the Challenger Disaster, the Space Shuttle
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Columbia lifted off perfectly without a glitch. This helped to cure many
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feelings that some Americans had about other possible problems that might
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cause another explosion to occur. If another disaster had occurred, then
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manned shuttle flights would have been abolished, and only un-maned rockets
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would be sent into Space. This would limit NASA's capabilities and
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virtually ruin the dream of the Space Station because with manned
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space-craft, many arduous tasks could be accomplished in space such as the
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space station and the fixing of satellites, which could not be done by
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mechanical means. People also did not want to have the Soviet Union nor
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Japan excel in their quest for Space Exploration, so they wanted to have
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high hopes for the American technology.
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After the Challenger disaster, there were many books, thesis's,
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tributes to the crew of Challenger, and tributes to McAullife, written for
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the astronauts which are still remembered over six years later. The name
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Challenger is also retired, so that no other ship in the future of NASA
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will have any similarities to Challenger.
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My opinion is special to my own. At the time of the disaster, I was
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in 5th grade and I had just come home when I saw on the news..."This is a
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Special Report...Peter Jennings reporting." I was often amazed and excited
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about what they were going to say when my favorite television shows were
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interrupted, or likewise when they had a "real" broadcast of the Emergency
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Broadcast System; that annoying beep. Still, that day I was neither amazed
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nor excited, just for a 5th grader, confused. I felt sorrow and sadness
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for all of the astronauts, yet pride for them since they all had risked
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their lives for the benefit of the American people.
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At the time of the disaster, I felt that NASA and the entire United
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States space program was set back years. However, the past few years have
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been positive ones with the successful launching of over two dozen
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shuttles. And, the other day of this week, the newest shuttle just
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completed, Endeavour, had launched successfully into space, and, while in
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space, performing what it set out to do; fix and attach rockets to a
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satellite (called Instelat) hat was orbiting too low in the Earth's for it
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to function properly. On the last attempt to retrieve it, the three
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Astronaut space-walkers attached it to the cargo bay of the shuttle and set
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it off to a higher orbit. With these many accomplishments that NASA and
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the United States Government has made in the last 3 years, I believe that
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the Space Program is back on track better than it was before the accident
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due to the vast knowledge we have now of "learning from our mistakes."
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Now, it can be told true, that we can explore Space, the Final Frontier, to
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where ever its limits may be.
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