NASA has discovered a vast chasm on the surface of the sun which could grow millions of miles across.
The coronal hole is a gap in the star’s magnetic field, which allows heat from the star’s 5,500C surface to escape into space.
Coronal holes are fairly common – but this one is significantly larger than normal and could grow to a quarter of the sun’s surface.
They appear to be darker than the rest of the star because they have a lower temperature, as well as less energy and gas.
Although the holes look terrifying, they are not normally anything to worry about, reports Russia Today .
However the presence of coronal holes can disrupt satellite and radio communications on Earth due to the solar wind they emit.
An explanation on NASA ‘s website said: “ Coronal holes are the source of a high-speed wind of solar particles that streams off the sun some three times faster than the slower wind elsewhere.”
Last month the sun went “completely blank” twice, suggesting that Earth could be heading for a mini ice age .
In June, there were were no sunspots on the massive star’s surface for four days – something which hadn’t happened since 2011. This has since happened again.
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