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Just a quick dumb question : where are the satellites and the stars ?

"Since Earth is extremely bright in the darkness of space, EPIC has to take very short exposure images (20-100 milliseconds). The much fainter stars are not visible in the background as a result of the short exposure times." - http://www.nesdis.noaa.gov/DSCOVR/

Thanks ! It makes sense. :-)

Too dim to show up in an exposure calibrated for a nearby sunlit Earth.

Same with the Apollo photographs taken on the Moon – the surface is just too bright.

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