If you ever used Google Earth, Bing, Apple or most other mapping applications then you’ll have been seeing images mostly captured by satellites in orbit at around 360 odd miles above the earth.
In 2014 a new satellite was launched called the worldview-3 which is owned and operated by DigitalGlobe and is the first commercial satellite to have a 25cm resolution. That means that each pixel of the picture is the equivalent to 25cm x 25cm or about 1 square foot.
That might not sound that good but don’t forget the camera is 363 miles up in space……
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