| 21. | The timing becomes problematic given the existence of the Soviet orbiter.
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| 22. | Currently the three SSMEs return to earth with the Shuttle orbiter.
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| 23. | The 1967 Orbiter light is one of his best known pieces.
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| 24. | For the orbiter, however, the mission will have only begun.
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| 25. | The space shuttle orbiter Discovery is loaded with more than 80 experiments.
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| 26. | A tunnel connects it to the orbiter's middeck.
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| 27. | Climate Orbiter is on its way to the red planet.
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| 28. | The orbiter will slip into orbit around Mars on Sept . 23.
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| 29. | The Climate Orbiter is designed to reach Mars in September.
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| 30. | It estimated the loss of the Climate Orbiter at $ 125 million.
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