A high-speed solar wind stream has been blowing around Earth for three days, sparking some of the strongest geomagnetic storms and brightest auroras in years. Here is the view, yesterday, from Antarctica:
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"This was the most intense and amazing natural phenomenon I have ever had the privilege of observing," says photographer André Harms. "It was such an exhilarating feeling when the sky just exploded in a kaleidoscope of moving colors."

Harms works at SANAE IV, the South African Antarctic research station in coastal Dronning Maud Land just inside the Antarctic Circle. The base itself is located on top of a distinctive flat-topped nunatak, which offers observers a fine view of the sky. The view could remain colorful for some days to come as the solar wind continues to blow. Stay tuned!