Earth at Night
http://www.dearastronomer.com/
A new, stunning view of Earth has recently been released by NASA. The image, comprised of data taken over the course of 312 orbits has amazingly clear views of the entire surface of Earth.
By using a range of filters, the Suomi National Polar-orbiting Partnership (NPP) satellite was able to detect bright city lights, as well as dimmer lights from gas flares, auroras, wildfires and reflected moonlight.
In addition to detecting artificial, and natural light sources, the satellite was also able to observe Hurricane Sandy, which was illuminated by reflected moonlight. The night images also showed the extent of power outages on the eastern seaboard of the United States.
Source:NASA Image of the Day Gallery
Ray Sanders is a Sci-Fi geek, astronomer and blogger. Currently researching variable stars at Arizona State University, he writes for Universe Today, The Planetary Society blog, and his own blog, Dear Astronomer
2012-12-10 08:00:55
Source: http://www.dearastronomer.com/2012/12/07/earth-at-night/
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