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Science 25 May 1979:
Vol. 204. no. 4395, pp. 799 - 806
DOI: 10.1126/science.204.4395.799
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Articles

One Mars Year: Viking Lander Imaging Observations

Kenneth L. Jones 1, Raymond E. Arvidson 2, Edward A. Guinness 3, Susan L. Bragg 3, Stephen D. Wall 4, Carl E. Carlston 5, and Deborah G. Pidek 6

1 President of Planetary Research, Inc., Pasadena, California 91106
2 Associate professor at McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences, Washington University, St. Louis, Missouri 63130
3 Graduate students at McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences, Washington University, St. Louis, Missouri 63130
4 Aerospace technologist at NASA Langley Research Center, Hampton, Virginia 23665
5 Staff engineer at Martin Marietta Corporation, Denver, Colorado 80201
6 Jet Propulsion Laboratory, Pasadena, California 91109

Throughout the complete Mars year during which they have been on the planet, the imaging systems aboard the two Viking landers have documented a variety of surface changes. Surface condensates, consisting of both solid H2O and CO2, formed at the Viking 2 lander site during the winter. Additional observations suggest that surface erosion rates due to dust redistribution may be substantially less than those predicted on the basis of pre-Viking observations. The Viking 1 lander will continue to acquire and transmit a predetermined sequence of imaging and meteorology data as long as it is operative.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
From the Cover: Formation of gullies on Mars: Link to recent climate history and insolation microenvironments implicate surface water flow origin.
J. W. Head, D. R. Marchant, and M. A. Kreslavsky (2008)
PNAS 105, 13258-13263
   Abstract »    Full Text »    PDF »
The geomorphology of Mars.
V. R. Baker and V. R. Baker (1981)
Progress in Physical Geography 5, 473-513
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Science. ISSN 0036-8075 (print), 1095-9203 (online)