Geomagnetic Storm on March 1st‏

A solar wind stream hit Earth's magnetic field during the early hours of March 1st, sparking a day-long magnetic storm that is subsiding but perhaps not over yet. In recent hours, spotters have reported auroras over Northern Ireland, Scotland, Latvia, Norway, and Sweden. High-latitude sky watchers in North America should be alert for green lights as night falls across their continent.

NASA space physicist James Spann took this picture in Poker Flats, Alaska, where he is attending a scientific conference to study auroras:

--------------------Photo details: Nikon D700 with 14-24mm lens at f/3.5, exposure of 25 seconds at 14 mm, ISO 1000



"This is the first time I have seen the aurora borealis in person," says Spann who lives in Alabama. "It was fantastic--the greatest light show on Earth. It was cold (<-20 F) outside but worth every minute of exposure and lost sleep. I am afraid now that I have been ruined for life since my first personal viewing of the aurora was so amazing."

As a researcher he also appreciated the greater meaning of the display: "This is the most obvious and accessible evidence of the connectivity that Earth has with our star the sun. Witnessing the connectivity first-hand was particularly special to me."

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