History & Biographies 
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Featured Article
Solar Imaging: Optical
Introduction The first surviving daguerrotype photograph of the sun was taken at the dawn of photography in 1845 by French physicists Louis Fizeau (1819-1896) and Lion Foucault (1819-1868). ...
Featured Resource
NASA 50th Magazine
The National Aeronautics and Space Administration celebrated its 50th anniversary in 2008. Click the image below to access a wealth of information, image galleries and other content relating to NASA's first 50 years. Open-Letter from NASA...
