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The surface of Venus in twilight with a massive dormant volcano; terrestrial planet; telluric planet; rocky planet; runaway greenhouse effect - Space Art Illustration
 

Venus in twilight

A dormant volcano rises toward sulfurous clouds in the venusian twilight. In the foreground is a lava flow from a previous eruption. The long night ahead--120 Earth days long*--will offer no relief from the blast furnace temperatures as thick clouds contain the heat like a pressure cooker and high-altitude winds keep it distributed uniformly around the planet.

* Venus rotates very slowly. One day-night cycle on Venus is 243 Earth days long, which is actually longer than the venusian year of 225 Earth days.

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Copyright Walter B. Myers. All rights reserved.

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