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Why is that Forest Red and that Cloud Blue? How to Interpret a False-Color Satellite Image
16 min read

Are you distracted by unusual colors in satellite images? They are not photographs, and understanding the difference between them is…

Mar 14, 2014
Article
Catalog of Earth Satellite Orbits
15 min read

Different orbits give satellites different vantage points for viewing Earth. This fact sheet describes the common Earth satellite orbits and…

Sep 4, 2009
Article
Cities at Night: The View from Space
7 min read

Astronauts onboard the International Space Station capture nighttime photographs of city lights, spectacular evidence of humanity's existence, our distribution, and…

Apr 22, 2008
Article
Seeing Leaves in a New Light
14 min read

An increase in plant growth can cool surface temperatures, give rise to more rain and cloud cover and lower the…

May 6, 2002
Article
Measuring Vegetation (NDVI & EVI)
7 min read

In an effort to monitor major fluctuations in vegetation and understand how they affect the environment scientist use satellite remote…

Aug 30, 2000
Article
Remote Sensing
19 min read

Remote sensing is the science and art of identifying, observing, and measuring an object without coming into direct contact with…

Sep 17, 1999
Article