Week in Geek: Holiday lights change the view from space

December 22, 2014 5:35 AM

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NASA’s Suomi National Polar-orbiting Partnership (Suomi NPP) satellite has been orbiting Earth since October, 2011 collecting remote-sensing and atmospheric data for global climate studies and sending back fascinating images. The satellite is tracking data that includes atmospheric and sea surface temperatures, land and ocean biological productivity, and cloud and aerosol properties.

Suomi NPP (and other Earth-observing satellites with similar missions) are in sun-synchronous orbits, which allows them to remain in a somewhat fixed position over Earth as seen from the Sun. These orbits are ideal for imaging Earth’s surface because they allow for the fraction of Earth in sunlight ...

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