[SFDXA] What Hit Earth's Magnetic Field Yesterday?

[Bill]

*Space Weather News for Feb. 3, 2021*
https://spaceweather.com 
<https://Spaceweather.us11.list-manage.com/track/click?u=0c5fce34d5ca05f64a13d085d&id=d0c47e7236&e=d71faae82a>
https://www.spaceweatheralerts.com 
<https://Spaceweather.us11.list-manage.com/track/click?u=0c5fce34d5ca05f64a13d085d&id=4ad295b06a&e=d71faae82a>

*CO-ROTATING INTERACTION REGION:* Yesterday, a co-rotating interaction 
region (CIR) hit Earth, sparking some of the craziest-looking auroras of 
the current solar cycle. What *is* a co-rotating interaction region? 
Think of it as a mini-CME, but without an explosion on the sun. Learn 
more and see the photos on today's edition of Spaceweather.com 
<https://Spaceweather.us11.list-manage.com/track/click?u=0c5fce34d5ca05f64a13d085d&id=bdf5b5ff02&e=d71faae82a>. 

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