NASA discovers giant hole growing on the sun’s surface (VIDEO)
RT.com
14 Jul, 2016
Known as a ‘coronal hole’, the black mass creeping across the sun’s surface has the potential to cause chaos on Earth.
A coronal hole appears on the sun’s corona, or atmosphere, when the sun’s magnetic field opens and allows heat from the corona to be expelled.
The lower temperature of these areas causes them to appear darker than the rest of the sun’s surface. They also have lower energy and gas levels, adding to its dark appearance.
While this sounds pretty terrifying, given the Earth’s dependence on the sun to survive, scientists say this discovery is not a sign of impending doom for either our star or our planet.
Coronal holes appear regularly on the sun’s surface, but this one is much larger than usual. The holes can last for months and can grow to cover up to a quarter of the sun’s surface, according to NASA.
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