Aurora Alert Tonight And Tuesday Sept. 10-11

(Go to the end of the blog for updates.) Cross your fingers. The space weather forecast looks promising with a moderate G2 geomagnetic storm expected to develop overnight. Northern lights could surge as far south as the the upper Midwest, New York, Idaho and Washington. The action is expected to begin early this evening with minor…
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Surprise Aurora Steals Into The Night

Charles Darwin closed the last paragraph of his book On the Origin of Species with this wonderful observation: “There is grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of…
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Northern Lights May Shine Tonight June 1-2

You can often count on coronal holes to provide auroras even when solar activity is low. Today for instance there’s only one small sunspot group, and it’s very “quiet.” But invisible to the eye, a coronal hole has been blasting us like a garden hose with a stream of subatomic particles that raises the possibility…
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Fun With Contrails … And Auroras

Contrails, those streaks of condensed moisture that form in the wake of high-flying aircraft, can be annoying if you’re a photographer. They mark up an otherwise blue sky and can add an unwanted man-made element to pristine landscape photos. But sometimes contrails can become a subject of their own, where they add an geometric or…
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Aurora Kicks Into Gear Overnight — More Possible Tonight

Space weather forecasters expected auroras tonight, but they arrived a night early and put on a great show till dawn. I noticed a slight glow low in the northern sky around 9:30, so I packed up the telescope and drove to a dark spot. At 10 o’clock, the crescent moon was still bright in the…
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