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| First Page | Document Content | |
|---|---|---|
 Date: 2001-09-04 13:21:43Planetary science Space plasmas Plasma physics Electrical phenomena Aurora Io IMAGE Polar Spacecraft Spaceflight Space |
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| First Page | Document Content | |
|---|---|---|
Date: 2001-09-04 13:21:43Planetary science Space plasmas Plasma physics Electrical phenomena Aurora Io IMAGE Polar Spacecraft Spaceflight Space |
Add to Reading List |
;;5RXQGWKH&ORFN$XURUD6DWHOOLWH0RQLWRULQJ Introduction: During the 1990’s, NASA has placed research satellites in orbit around the earth to keep the polar regions under almost constant surveillance for signs of 
