Hosted on MSN1mon
The Northern Lights May Illuminate the Night Sky This Week—Here's How to See ThemThe Kp number is a numeric scale for geomagnetic activity and is computed by averaging the magnetic activity globally every three hours, according to the Geophysical Institute. For Kp in the 3 to ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback