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The Sun in infrared light

The Sun in infrared light
The Sun in infrared light This image of the Sun in infrared light was created using data captured by a NASA WB-57 high-altitude research plane during the 2017 total solar eclipse. At left is an “active region,” a large concentration of magnetic fields from which solar flares often emerge. At right is a solar prominence, a strand of hot gas looping off the Sun’s surface. Both showed up at the same intensity of infrared light shown as dark red in this figure. This was surprising because active regions are much hotter than prominences. SwRI/NASA/Daniel B. Seaton