Chance For Aurora Saturday Night, Dec. 1

A high-speed solar wind stream from an opening in the sun’s magnetic field called a coronal hole will arrive at Earth starting tomorrow afternoon (Dec. 1). If we’re fortunate and the zillions of electrons find their way past Earth’s magnetic defenses and into the upper atmosphere, we’ll have a modest display of northern lights. Space…
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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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Minimalist Sun May Stoke Aurora Tonight

It’s been a long time, but skywatchers in the northern U.S. states have a shot at seeing the aurora beginning at nightfall tonight through about 1 a.m. (Central Time). We’ve been in a dry spell for northern lights for some time now. That’s not surprising considering that the sun is slouching toward the next solar…
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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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Aurora Alert Late Tonight / Venus Gets A Smile

A small hole in the sun’s magnetic overcoat called a coronal hole is blowing solar particles our way that could spark an aurora tonight. That’s according to the latest space weather forecast out of Boulder.  You may have to stay up late for this one. The minor geomagnetic storm is expected to hit around 1…
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