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PHOTO CATEGORIES SCIENCEVIEWS AMERICAN INDIAN AMPHIBIANS BIRDS BUGS FINE ART FOSSILS THE ISLANDS HISTORICAL PHOTOS MAMMALS OTHER PARKS PLANTS RELIGIOUS REPTILES SCIENCEVIEWS PRINTS
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This image is a mosaic of 8 images taken by the Giotto spacecraft during the Halley encounter on March 13, 1986. The nucleus dimensions are about 16 by 8 by 8 kilometers. By examining the dust jets being emitted from the nucleus, scientists were able to determine that only about 10% of the surface was active. |
