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The Trouble with Venus

Published online by Cambridge University Press:  14 August 2015

Carl Sagan
Carl Sagan*
Affiliation:
Laboratory for Planetary Studies, Cornell University, Ithaca, N.Y., U.S.A.

Extract

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Venus is the closest planet. Its surface has never been seen at optical frequencies; nevertheless we now know with at least fair reliability, and in some cases with remarkable accuracy, its surface temperature and pressure, its atmospheric structure, its period of rotation, the obliquity of its rotation axis, the mean surface dielectric constant, its ionospheric structure, and even a little about its surface topography. And yet the clouds of Venus, visible to the naked eye and known to be clouds since the time of Lomonsov, continue to elude our efforts to understand them comprehensively. Not only do we disagree on the chemical composition of the clouds, but it is not even settled whether they are condensation clouds or non-condensable aerosols. And yet there is a very wide variety of relevant data on the clouds. Indeed, the ratio of potentially diagnostic data points to mutually exclusive hypotheses is of the order unity.

Type
Part I: Venus
Information
Symposium - International Astronomical Union , Volume 40: Planetary Atmospheres , 1971 , pp. 116 - 127
Copyright
Copyright © Reidel 1971 

References

Arking, A. and Potter, J.: 1968, J. Atmospheric Sci. 25, 617.2.0.CO;2>CrossRefGoogle Scholar
Avduevsky, V. S., Marov, M. Y., and Rozhdestvensky, M. K.: 1970, Radio Sci., in press.Google Scholar
Barath, F. T., Barrett, A. H., Copeland, J., Jones, D., and Lilley, A. E.: 1964, Astron. J. 69, 49.CrossRefGoogle Scholar
Chamberlain, J. W.: 1965, Astrophys. J. 141, 1184.Google Scholar
Coffeen, D. L.: 1968, J. Atmospheric Sci. 25, 643.Google Scholar
Dickel, J. R., Medd, W. J., and Warnock, W. W.: 1968, Nature 220, 1183.Google Scholar
Donahoe, F. J.: 1970, Icarus 12, 424.Google Scholar
Eck, R., Dayhoff, M. O., Lippincott, E. R., and Sagan, C.: 1967, Science 155, 556.Google Scholar
Fjeldbo, G.: 1969, Remarks at URSI Conference on Planetary Atmospheres and Surfaces, Wood's Hole, Mass., August.Google Scholar
Gierasch, P.: 1970, Icarus 13, 25.Google Scholar
Gold, T. and Soter, S.: 1969, Icarus 11, 356.Google Scholar
Golitsyn, G.: 1970, Icarus 13, 1.CrossRefGoogle Scholar
Hansen, J. E.: 1969, Astrophys. J. 158, 337.Google Scholar
Lewis, J.: 1969a, private communication.Google Scholar
Lewis, J.: 1969b, Icarus 11, 367.Google Scholar
Hunten, D. H. and Goody, R. N.: 1969, Science 165, 1317.Google Scholar
Jones, D. E.: 1961, Planetary Space Sci. 5, 166.Google Scholar
Kroupenio, N. N.: 1970, this volume, p. 32.Google Scholar
Kuiper, G. P.: 1970, this volume, p. 91.CrossRefGoogle Scholar
Mayer, C. H.: 1969, private communication.Google Scholar
Mayer, C. H., McCullough, T. P., and Sloanaker, R. M.: 1958, Astrophys. J. 127, 1.CrossRefGoogle Scholar
Morowitz, H. and Sagan, C.: 1967, Nature 215, 1259.Google Scholar
Morrison, D.: 1969, Science 163, 815.Google Scholar
Ohring, G.: 1969, Icarus 11, 171.Google Scholar
O'Leary, B. T.: 1967, Astrophys. J. 146, 754.Google Scholar
O'Leary, B. T.: 1970, Icarus 13, in press.Google Scholar
Plummer, W. T.: 1969, Science 163, 1191.CrossRefGoogle Scholar
Plummer, W. T.: 1970a, in press.Google Scholar
Plummer, W. T.: 1970b, Icarus 12, 233.CrossRefGoogle Scholar
Pollack, J. B.: 1969, Icarus 10, 314.Google Scholar
Pollack, J. B. and Morrison, D.: 1970, this volume, p. 29, also Icarus 12, 376.Google Scholar
Pollack, J. B. and Sagan, C.: 1967, J. Geophys. Res. 73, 5943.Google Scholar
Pollack, J. B. and Sagan, C.: 1965, Icarus 4, 63.Google Scholar
Potter, J.: 1969a, J. Atmospheric Sci. 26, 511.Google Scholar
Potter, J.: 1969b, Bull. Am. Astron. Soc. 1, 258.Google Scholar
Rubey, W. W.: 1969, private communication.Google Scholar
Sagan, C.: 1960, Jet Propulsion Lab. Tech. Rept. 32–34.Google Scholar
Sagan, C.: 1961, Science 133, 849.Google Scholar
Sagan, C.: 1967, Nature 216, 1191.Google Scholar
Sagan, C.: 1968, International Dictionary of Geophysics (ed. by Runcorn, S. K.), Pergamon Press, London, p. 2049.Google Scholar
Sagan, C.: 1969, Comments Astrophys. Space Phys. 1, 94.Google Scholar
Sagan, C.: 1970, ‘Life’, Encyclopedia Brittannica. Google Scholar
Sagan, C. and Kellogg, W. W.: 1963, Ann. Rev. Astron. Astrophys. 1, 235.Google Scholar
Sagan, C. and Pollack, J. B.: 1967, J. Geophys. Res. 72, 469.Google Scholar
Sagan, C. and Regas, J.: 1970, Comments Astrophys. Space Phys., in press.Google Scholar
Schorn, R. A., Barber, E. S., Gray, L. D., and Moore, R. C.: 1969, Icarus 10, 98–104.Google Scholar
Smith, W. B., Ingalls, R. P., Shapiro, I. I., and Ash, M. E.: 1970, Radio Sci., in press.Google Scholar
Veverka, J.: 1971, Icarus 14, to be published.Google Scholar