Solar Geomagnetic Ap Index Hits Zero

This is something you really don’t expect to see this far into solar cycle 24. But there it is, the Solar Dynamics Observatory satellite shows the sun as a cueball:…

Cosmically, Heliospherically, and Terrestrially, FYI

Last night I decided to have a look at the Space Weather Prediction Center solar charts to see how the geoplanetary magnetic index (Ap) was doing, and decided since I…

Global Eruption Rocks the Sun

I should point out that thanks to the Solar Dynamics Observatory (SDO), we can see things that we’ve never seen before. So while this event is unprecedented in the history…