It was unexpected. Sort of. 

When things are travelling at a million miles an hour (actually) for a few days, ETAs aren't exactly a hard and fast rule. In fact, we aren't even sure where this high speed stream came from on the sun, but it produced Kp5 levels on and off through the night as the magnetic field flipped north and south. We waited out a light haze across the sky, and we witnessed incredible dances up there for much of the latter half of the night.

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