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单词 Mars Observer
释义
Mars Observer

Space Exploration
  • A NASA space probe launched in 1992 to orbit Mars and survey the planet, its atmosphere, and the polar caps over two years. The US$980 million project miscarried, however, when the probe stopped transmitting in August 1993 after a suspected explosion in its orbital insertion engine.


Geology and Earth Sciences
  • A NASA mission to Mars that was launched in 1992. It should have orbited the planet, surveying and mapping, but communication with the spacecraft was lost before it could be manœuvred into orbit and the mission was abandoned.


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