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AURORA BOREALIS: Earth's magnetic field is mostly quiet. Nevertheless, some bright auroras were caught swirling around the Arctic Circle on Jan. 28th. Military satellites photographed the lights from above, while sky watchers in Canada saw them from ground level. An even bigger display is expected on Feb. 3-4 when an incoming solar wind stream reaches Earth.

DOUBLE ERUPTION: Jan. 28th began with not one but two major eruptions on the sun. Separated by more than a million kilometers, the two blasts occurred almost simultaneously on opposite corners of the solar disk. Click on the image to view a movie recorded by NASA's Solar Dynamics Observatory:

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V-TOPPED LIGHT PILLARS: Light pillars are a common sight around cities in winter. Urban lights bounce off ice crystals in the air, producing tall luminous columns sometimes mistaken for auroras. But the light pillars Mike Hollingshead saw last night near a corn mill in Blair, Nebraska, were decidely uncommon. "They had V-shaped tops," he explains, "and some of the Vs were nested." Here is what he saw: [...]

Full article at spaceweather.com

 

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