ODP - Open Directory Project
"The Open Directory Project is the largest, most comprehensive human-edited directory of the Web. It is constructed and maintained by a vast, global community of volunteer editors."
Regional: North_America: Canada: Science_and_Environment: Astronomy:
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- Herschel/SPIRE project - Educational resources on the SPIRE instrument on the European Space Agency's Herschel mission, an infrared space observatory..
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