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an undertaking by the NASA Space Physics Division to preserve historical data and provide improved access to space physics data.
http://spds.nasa.gov/
investigates the fundmental physical principles, laws, and mechanisms which control Earth's interaction with its space habitat.
http://www.wavegroup.irfu.se/
solar physics, solar terrestrial relations, interplanetary medium, and cosmic rays.
http://ariel.igeofcu.unam.mx/