IRIS Movie of the Day
At least once a week a movie of the Sun taken by NASA's Interface Region Imaging Spectrograph (IRIS) is posted by one of the scientists operating the instrument.
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27 Apr 2018
Emerging flux and moving sunspots
Credit: IRIS, LMSAL/NASA, Jean-Pierre Wuelser
Even though we are approaching solar minimum, the sun occasionally still produces a few sunspots. At the center of this IRIS movie, new magnetic flux is emerging to the surface, creating a tiny new sunspot called a pore. At the same time, the other sunspots, even the big one move outward and away from the emerging flux.