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| Image: Earth from Space |
Today, with the google earth and satellite images, this seems like just
another image of Earth. But I am always fascinated by the complexity and the
precision of these images that are actually created from information and images
gathered over many years and various instruments.
The clouds, the land texture, the ocean and even the city lights make
this a spectacular image that is an amalgamation of science and art. This
particular image of the eastern hemisphere is created with data from multiple
satellite missions, followed by a group of scientists' and graphic designers'
work to make it look like this. The data is gathered by the satellite Terra and
the instrument MODIS (Moderate Resolution Imaging Spectroradiometer) is used
for measuring and creating photos of land, ocean and ice, while the city lights
are visualized from data collected from the Defense meteorological satellite
program and topography is based on radar data collected from Space shuttle
endeavour and from the Radarsat Antarctic Mapping project.
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