An elongated coronal hole — the darker area near the center of the Sun’s disk!!!

in #science7 years ago

Coronal holes are magnetically open areas on the Sun that allow high-speed solar wind to gush out into space.

image

They appear as dark areas when seen in certain wavelengths of extreme ultraviolet light, a type of light that is typically invisible to our eyes, but is colorized here in purple.

Download this video and more: https://go.nasa.gov/2CjiLJW

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