Vegetation on Neptune (artist’s conception).

This 1914 drawing (an artist’s conception) depicts the vegetation supposed to exist on the planet Neptune. The latest spectrographic evidence suggested the presence of chlorophyll on all of the planets. Surprisingly, “the farther the planet from the sun, the more luxuriant the vegetation.” Accordingly, Neptune contains the lush growth shown here.

The illustration and accompanying text can be found in the April 11, 1914, issue of The Illustrated London News.  The article cites the work of Professor Percival Lowell.

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