Aurora over Valkeakoski, Finland, May 3, 2010. Photo by Tom Eklund.

SpaceWeather.com sent me this, this morning:

GEOMAGNETIC STORM: A high-speed solar wind stream hit Earth’s magnetic field last night (May 2-3), sparking a geomagnetic storm that lasted more than 15 hours. In Scandinavia, the Northern Lights were so bright they could be seen through the glow of the midnight sun. Red auroras spilled across the Canadian border and were spotted in several US states.

Enjoy the photos! (I like the reds/purples, personally.) There’s more here, if you’re interested.

Aurora over Burtnieki, Latvia, May 3, 2010. Photo by Janis Satrovskis.

Aurora over Bozeman, Montana, May 3, 2010. Photo by Joseph Shaw.

Aurora over Lappeenranta, Finland, May 3, 2010. Photo by Tomppa Jurvanen.

Aurora near Gleichen, Alberta, May 2, 2010. Photo by Alan Dyer.