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The Bruce Murray Space Image Library

The dynamic Martian surface

The dynamic Martian surface

Astronomy, John Charles Duncan. Harper & Brothers Publishers, New York/London, 1935

The dynamic Martian surface
This scan of page 268 from Astronomy shows the clearest visual data available on Mars in 1935. Top: drawings of the Martian "canali" by Percival Lowell. Middle: seasonal changes on the planet's surface observed from May 10 to July 19, highlighting the alleged vegetation patches. Bottom: spectrograph comparisons of Mars and the Moon, used to make measurements of Mars' atmospheric composition.

Original image data dated on or about July 19, 1935

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