[aerohead]

Originally Posted by freebeard

As a sanity check, does your 'the solar physics literature' comment on the Charlemagne Event?

phys.org: Researcher points to Sun as likely source of eighth-century 'Charlemagne event'

* Sounds like it wasn't much of an event.
* Your friends at University of Illinois, Champagne-Urbana told us that for a supernova to hurt us, it would have to be within 25 light years, unless jets were perfectly aligned. If so, we'd be looking for either a neutron star or black hole remnant within 25 light years.
* University of Kansas has mentioned solar storms of 1928, 1946, and 1972.
*At home I've got some stuff on high-latitude events in Canada, where 6-million lost power, transformers exploded, satellites experienced space drag which degraded their orbits, ect..
* Also, NASA monitors solar flares for gamma-rays, so its looks like that can be a 'thing.'
* NASA also says that solar flares can not automatically be associated with solar storms, as it all has to do with alignments and intersects, neither of which can be predicted.