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By Mara Johnson-Groh NASA's Goddard Space Flight Center On January 31, 1958, the U.S. launched its first satellite: Explorer 1. Among its many achievements, Explorer 1 made the ground-breaking discovery of belts of charged particles encircling Earth. That discovery is still being studied today. 63 years on, scientists are still learning about these belts – …
By Sarah FrazierNASA's Goddard Space Flight Center A special collection of research in the Journal of Geophysical Research: Space Physics highlights the initial accomplishments of NASA's GOLD mission. GOLD, short for Global-scale Observations of the Limb and Disk, is an ultraviolet imaging spectrograph that observes Earth from its vantage point on a commercial communications satellite …
By Miles Hatfield NASA's Goddard Space Flight Center A new NASA study finds that our distant planetary neighbors, Uranus and Neptune, may have magnetic "seasons:" A time of the year when aurora glow brighter and atmospheric escape may quicken. Study authors Dan Gershman and Gina DiBraccio, of NASA's Goddard Space Flight Center in Greenbelt, Maryland, …
