https://www.sfgate.com/bayarea/article/sar-arc-red-glow-california-geomagnetic-storm-18476121.php
0
0
36 words
0
Comments
Photos of a little-known phenomenon called a SAR arc show a red glow over parts of California during Sunday night’s geomagnetic storm.
You are the first to view
Create an account
or login to join the discussion