Using the Swedish Solar Telescope, a ground-based observatory, Goran Scharmer and colleagues probe the penumbra—that’s the stringy structure around the perimeter of the dark part of the sunspot. The images give scientists new insight into how that structure forms.
Credits
Images: NASA/SDO, Institute for Solar Physics of the Royal Swedish Academy of Sciences. AAAS/Science. music by Malloc Baldwin
Meet the Producer
About Flora Lichtman
@flichtmanFlora Lichtman was the host of the podcast Every Little Thing. She’s a former Science Friday multimedia producer.