Satellites Discover What Triggers Eruptions of the Northern Lights
Saturday, July 26, 2008 - 18:14
in Astronomy & Space
What causes the shimmering, ethereal Northern Lights to suddenly brighten and dance in a spectacular burst of colorful light and rapid movement? To find out, NASA launched a fleet of five satellites called THEMIS, the Time History of Events and Macroscale Interactions during Substorms. read more
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