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Evening Standard
Evening Standard
World
Maryam Kara

What is the hole in the sun? Phenomenon explained

A coronal hole has opened in the sun's atmosphere, a recent photo from Nasa's Solar Dynamics Observatory has shown.

The captured image depicts a stream of solar wind hurtling towards Earth as magnetic fields open up, allowing solar wind to escape. The structure shown spans roughly 800,000 km along the axis.

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