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Aurora mysteries unlocked with NASA’s THEMIS mission | Science Daily
By NASA - http://www.nasa.gov/mission_pages/themis/multimedia/themis_artist.htmlhttp://www.nasa.gov/images/content/153094main_THEMIS.tif, Public Domain, https://commons.wikimedia.org/w/index.php?curid=1044195

Aurora mysteries unlocked with NASA’s THEMIS mission | Science Daily

NASA’s Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission discovered in their new computer models strong evidence in space about a special type of aurora called auroral beads. This glowing pearl necklace-like phenomenon in the sky lights up just before large auroral displays. The formation of these beads is part of a process that precedes the triggering of a substorm in space. “This is an important new piece of the puzzle” said Vassilis Angelopoulos, principal investigator of THEMIS at the University of California, Los Angeles.

Source: https://www.sciencedaily.com/releases/2020/08/200814131005.htm

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