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PHOTO INDEX OF PRIMARY TARGETS ASTEROIDS COMETS EARTH JUPITER KUIPER BELT MARS MERCURY METEORITES NEPTUNE OORT CLOUD PLUTO SATURN SOLAR SYSTEM SPACE SUN URANUS VENUS ORDER PRINTS OTHER PHOTO INDEXES ALL TARGETS PHOTO CATEGORIES SCIENCEVIEWS AMPHIBIANS BIRDS BUGS FINE ART FOSSILS INDIAN ISLANDS MAMMALS OTHER PARKS PLANTS RELIGIOUS REPTILES ROCKS & MINERALS SCIENCEVIEWS PRINTS

White Rock an Unusual Martian Feature (B/W) Target Name:   Mars Spacecraft:   Viking 1 Produced by:   Calvin J. Hamilton Copyright:  © Calvin J. Hamilton Date Released:  26 August 1998 (Publisher Permission Request) Related Document Mars Introduction Download Options Name Type Width x Height Size whiterkb.jpg JPEG 612 x 524 62K whiterkb.jpg JPEG 1930 x 1646 481K whiterkb.gif GIF 1930 x 1646 2M This image shows a lesser known, but unusual feature on Mars. It is called "White Rock". The picture was made from a mosaic of 6 images acquired by the Viking 1 orbiter spacecraft on September 9, 1978. The white feature is eroded crater fill, but exactly how it was formed has not been satisfactorily explained. White Rock was not formed by polar processes because it lies near to the equator at latitude -8 degrees and longitude 355 degrees. It has been modified through aeolian erosion showing transverse and longitudinal erosional features. Future missions will be required to more fully understand the processes that formed this enigmatic formation. This image is Copyright © 1998 by Calvin J. Hamilton. Any commercial/for-profit use of this image needs to be addressed to Calvin J. Hamilton.

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