English: NASA Earth Observatory published a map of data collected between July 2002 and April 2015 to give a view of the world’s cloudy and sunny spots. This is an average of the
MODIS images from
AQUA satellite. The darker the color, the clearer the sky.
The NASA website hosts a large number of images from the
Soviet/
Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The
SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use.
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