The sunspot from 2 weeks ago that produced all the beautiful night sky show worldwide with its X class flares, is rotating back into view. Cannot wait to see if we get a repeat show. The Sun is still peaking for this cycle so we will likely have other chances too.
Here is an explanation. There is also a follow up about the question awhile ago on charges generated by these rare events (the further south you go the less the effect):
Spaceweather.com Time Machine
Map of surface current intensity May 10-11: