위키백과 ― 우리 모두의 백과사전.
Description |
Cutaway view of asteroid 1 Ceres. Observations of 1 Ceres, the largest known asteroid, have revealed that the object may be a "mini planet," and may contain large amounts of pure water ice beneath its surface. The observations by NASA's Hubble Space Telescope also show that Ceres shares characteristics of the rocky, terrestrial planets like Earth. Ceres' shape is almost round like Earth's, suggesting that the asteroid may have a "differentiated interior," with a rocky inner core and a thin, dusty outer crust.
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Source |
http://hubblesite.org/newscenter/newsdesk/archive/releases/2005/27/text/
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Date |
Image released 2005 September 7
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Author |
NASA, ESA, and A. Feild (STScI)
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Permission |
Unless otherwise specifically stated, no claim to copyright is being asserted by STScI and it may be freely used as in the public domain in accordance with NASA's contract. [...] [1]
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