Mysterious tree ring mystery

[Twiddly]

From 1200 years ago!

http://www.scientificamerican.com/ar...tion-burst-rec

They are still not quite sure what caused it, it is kind of interesting to read about though. I was looking through the comments and saw:

"774AD rang a bell and so I looked up the entry for the Anglo Saxon Chronicle for that year:

"A.D. 774. This year the Northumbrians banished their king, Alfred, from York at Easter-tide; and chose Ethelred, the son of Mull, for their lord, who reigned four winters. This year also appeared in the heavens a red crucifix, after sunset; the Mercians and the men of Kent fought at Otford; and wonderful serpents were seen in the land of the South-Saxons."

Could the celestial crucifix be a supernova?"

Perhaps we saw what happened but could not explain it at the time? Note: The rest of that does not really have anything else to do with this story, just the "red crucifix" in the sky.


I know we have some people interested in such things here!

[Deleted]

Could have been anything, a supernova reaching us, a massive solar flare, a meteor... there's so many things that could have happened it's unbelievable.