![]() ![]() "The colors were absolutely amazing!" says Marianne Bergli, who photographed the display from Kilpisjarvi, Finland: ![]() 22nd, sparking a G1-class geomagnetic storm and bright auroras around the Arctic Circle. Aurora alerts: SMS TextĬO-ROTATING INTERACTION REGION: A co-rotating interaction region (CIR) hit Earth's magnetic field on Oct. Earth's magnetosphere is already energized by yesterday's CIR (see below), so a gust of solar wind could easily stimulate more storming. The gaseous material is flowing from a southern hole in the sun's atmosphere. 23rd, as Earth moves into a stream of high-speed solar wind. Neutron counts from the University of Oulu's Sodankyla Geophysical Observatory show that cosmic rays reaching Earth are slowly declining-a result of the yin-yang relationship between the solar cycle and cosmic rays.ĬHANCE OF STORMS TODAY: NOAA forecasters say there is a chance of G2-class geomagnetic storms today, Oct. Credit: SDO/HMIĬosmic Rays Solar Cycle 25 is beginning, and this is reflected in the number of cosmic rays entering Earth's atmosphere. These sunspots have simple magnetic fields that pose no threat for strong solar flares.
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