AURORA ALERT: Earth is inside a solar wind stream flowing from the indicated large coronal hole. Image credit: SOHO Extreme UV Telescope. Earth is entering a solar wind stream flowing from a large coronal hole on the Sun. Sky watchers should remain alert for auroras. The best viewing sites will be at high latitudes: e.g., New Zealand, southern Australia, northern Europe, Canada, Alaska and other northern US states like Wisconsin and Michigan ... and, of course, the ISS. Right: Near Sheep Mountain, Alaska, Calvin Hall was serenaded by Great Horned Owls as he watched these green auroras dance overhead on...