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29 March 2024
 
  » pubmed » pmid15205524

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Surface of young Jupiter family comet 81P/Wild 2: view from the Stardust Spacecraft
Donald E Brownlee ; Friedrich Horz ; Ray L Newburn ; Michael Zolensky ; Thomas C Duxbury ; Scott Sandford ; Zdenek Sekanina ; Peter Tsou ; Martha S Hanner ; Benton C Clark ; Simon F Green ; Jochen Kissel ;
Date 18 Jun 2004
Journal Science, 304 (5678), 1764-9
AbstractImages taken by the Stardust mission during its flyby of 81P/Wild 2 show the comet to be a 5-kilometer oblate body covered with remarkable topographic features, including unusual circular features that appear to be impact craters. The presence of high-angle slopes shows that the surface is cohesive and self-supporting. The comet does not appear to be a rubble pile, and its rounded shape is not directly consistent with the comet being a fragment of a larger body. The surface is active and yet it retains ancient terrain. Wild 2 appears to be in the early stages of its degradation phase as a small volatile-rich body in the inner solar system.
Source PubMed, pmid15205524 doi: 10.1126/science.1097899
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