They're baaaaa-aaaaaack

I swear, you can’t turn your back on the Sun for a moment, just now. Sunspot 484 and its buddies 486 and 488 have swung back around from the far side of the Sun and are throwing plasma at us again. Once again Ireland is having aurorae — the wavefront of the CME responsible would have hit the Earths magnetic field around 0800 UTC — and it looks like a good night for further rainbowy shenanigans. ..