Compound Eye

Compound Eye

The many facets of science photography

40 years ago: our sister planet revealed


Image credit: NASA

On February 5, 1974, NASA's Mariner 10 returned this surprising image of Venus. The photograph was the first to record our neighboring planet's clouds in such detail, polar vortex and all.

NASA isn't above a little bit of image manipulation, though. In real color, Venus looks like this:

Image from NASA, processed by R. Nunes.

To generate the sharp, contrasty visage, Mariner's UV camera filter blocked some of the haze reflected by high level clouds, while NASA "color-enhanced" the final image.

source: NASA

The views expressed are those of the author and are not necessarily those of Scientific American.

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