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coronal mass ejection
(redirected from Coronal mass ejections)

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coronal mass ejection [kə‚rōn·əl ′mas i‚jek·shən]
(astronomy)
A bubble of gas threaded with magnetic field lines, with dimensions of up to hundreds of thousands of miles, that is ejected from the solar corona over the course of several hours and can disrupt the solar wind, resulting in a geomagnetic storm.


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When coronal mass ejections (nuclear explosions in the corona) send shock waves into space, these feedstock protons are accelerated into interplanetary space," said Feldman.
[ILLUSTRATION OMITTED] The sun has entered its weakest cycle of magnetic activity since 1928, meaning fewer solar flares and coronal mass ejections, scientists predicted in a May 8 teleconference.
Solar flares, coronal mass ejections and other things associated with increased activity can be a really bad thing for communications, navigation and satellites," Reeves said.
 
 
 
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