Abstract
The existence of the atmosphere of Mars has been rendered absolutely certain by the totality of the observations. The evidence is of varied nature and strength.
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Notes
- 1.
Photomerichsche Untersuchungen, p. 127; Leipzig, 1865.
- 2.
Very recently (Knowledge, June 1892), in reply to a letter from W. H. Pickering about the polar ices of Mars, A. C. Ranyard wrote: “We are, it seems, forced to admit either that the polar caps of Mars are not made up of snow, or that the mean temperature of the equatorial and temperate regions of Mars is above zero, i.e. warmer than would be indicated by the distance from the Sun. This fact can be explained if we admit that the Martian atmosphere is denser than ours. But perhaps the caps are not made up of snow. White crystals of carbon dioxide could evaporate at a temperature much lower than the greatest cold that we experience on Earth. I believe, however, that it is simpler to admit that the density of the Martian atmosphere corresponds to that of the planet, and that it is in consequence less than ours; but there is abundant water vapour, and perhaps other vapours which contribute to the storing-up of the warmth received from the Sun.”
- 3.
E. LEDGER, The Sun, its planets and their satellites.
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Sheehan, W. (2015). The Atmosphere of Mars—Martian Climatology and Meteorology: The Conditions of Life on Mars. In: Sheehan, W. (eds) Camille Flammarion's The Planet Mars. Astrophysics and Space Science Library, vol 409. Springer, Cham. https://doi.org/10.1007/978-3-319-09641-4_8
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