Elongated Coronal Hole
A long coronal hole rotated into view of Earth between March 23rd and 25th, 2016. Coronal holes appear dark when viewed in some wavelengths of extreme ultraviolet light. These holes are magnetically open areas from which high-speed solar wind streams into space. This solar wind can cause aurorae when it reaches Earth.
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Photo credit: © Photo Researchers / Alamy / Afripics
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Keywords: 2016, active, activity, astronomical, astronomy, astrophysical, astrophysics, atmosphere, body, celestial, corona, coronal, deep, ejection, elongated, flare, heavenly, hole, mass, object, prominence, radiation, region, science, sky, solar, space, star, sun, wind
