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Science 17 January 1969:
Vol. 163. no. 3864, pp. 275 - 276
DOI: 10.1126/science.163.3864.275
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Articles

Dust in the Lower Atmosphere of Venus

Albert D. Anderson 1

1 Lockheed Missiles and Space Company, Palo Alto Research Laboratory, Palo Alto, California 94304

Terminal velocities of dust particles have been calculated for two model atmospheres of Venus; data are derived from measurements of Mariner V and Venera 4. The vertical wind velocities required to maintain dust aloft in the lower atmosphere of Venus are less than one-half the magnitude of those needed on Earth. Since the lower atmosphere of Venus appears to be hot, dry, and strongly convective, it probably contains much more dust than that of Earth.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)