| 31. | NASA provides real-time tracking of the over 500 artificial satellites maintained in orbit around Earth.
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| 32. | On 24 April 1970 CAST successfully launched China's first artificial satellite Dong Fang Hong I.
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| 33. | Oct . 4, 1957 _ Soviet Union launches Sputnik, the world's first artificial satellite.
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| 34. | The first artificial satellite used solely to further advances in global communications was a balloon named Echo 1.
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| 35. | A "'satellite constellation "'is a group of artificial satellites working in concert.
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| 36. | Ten years after oil, artificial satellites burn up in the atmosphere as parts are not being replaced.
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| 37. | Our scientists and technicians have succeeded in the first artificial satellite aboard a multi-stage rocket into orbit,
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| 38. | However, orbiters such as the Space Shuttle and many artificial satellites appear to move from west to east.
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| 39. | It allows crew members to contact starships in orbit without relying on an artificial satellite to relay the signal.
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| 40. | The first artificial satellite of the Moon was the Soviet probe Luna 10, launched March 31, 1966.
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