Wikimedia Commons/NASA Goddard Space Flight Center
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Coronal mass release (CME) due to solar storms.
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Nationalgeographic.co.id-Surface Sun The visible temperature, or what is called the photosphere, is about 6,000 degrees Celsius. Yet several thousand kilometers above it, the atmosphere sun, known as the corona, is hundreds of times hotter. The temperature reaches a million degrees Celsius or even higher.
This temperature spike, despite the increasing distance from the main energy source Sun, has been observed in most stars. This phenomenon represents a fundamental puzzle that astrophysicists have pondered for decades.
In 1942, the Swedish scientist Hannes Alfén proposed an explanation. He theorized that magnetic waves of plasma could carry large amounts of energy along a magnetic field Sun from its interior to the corona, passing through the photosphere before exploding with heat in the upper atmosphere Sun.
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