Atmosphere of Mercury

  title={Atmosphere of Mercury},
  author={I. Williams},
  • I. Williams
  • Published 1974
  • Chemistry
  • Nature
  • THE recently released news concerning the possible atmosphere surrounding Mercury seems to have taken the astronomical community by surprise. It had generally been expected that because of the high temperatures (of the order of 450 K) existing there and also because of the low surface gravity, any atmosphere originally present, or any released from subsequent events on the surface would quickly evaporate since the random thermal speed of the atoms would be greater than the escape velocity. If V… CONTINUE READING
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