Northern Lights Mystery May Be Solved
Date: 26 February 2012 Time: 01:01 PM ET
Astrophotographer Shawn Malone of Marquette, Mich., took
this shot of an aurora on Feb. 18, 2012. Malone appears in the photo
seated in the chair.
CREDIT: Shawn Malone
The electrons responsible for the auroras — also known as the northern and southern lights — are likely accelerated to incredible speeds in an active region of Earth's magnetosphere, according to a new study. This region is 1,000 times larger than scientists had thought possible, providing enough volume to generate lots of the fast-moving electrons, the study reports.
Glenn A. Walsh, Project Director,
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