| 31. | 1971 : Rocketdyne begins work on the reusable space shuttle engine.
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| 32. | Even tardy shuttle-bus drivers shamelessly beg us for pins.
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| 33. | Bus service replaced shuttle service while repairs were being made Sunday.
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| 34. | Free shuttle service will also be available from area parking lots.
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| 35. | It will be the last space shuttle launch in'96.
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| 36. | The Medicare program is more complex than building the space shuttle,
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| 37. | Q : The landing of the space shuttle often is delayed.
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| 38. | At Wal-Mart, he shuttles between four area stores.
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| 39. | She is scheduled to ride the shuttle to Mir in September.
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| 40. | Currently, NASA relies on two approaches to protect shuttle astronauts.
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