NASA has just released the image taken by Solar Dynamics Observatory. It shows a giant hole in the topmost layer of the Sun.
NASA has just released a new image from the space and it showed something eye popping – a giant hole in the topmost layer of the Sun. The hole is captured by Solar Dynamics Observatory and is so big that 50 Earths can fit into it.
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Holes in the Sun, like the one spotted on October 10, are called Coronal holes or dark spots. These holes generally form over the sun’s poles and lower latitudes and continue to change their size and shape. They are the part of sun’s outermost layer known as Corona and represent the areas where sun is cooler and darker.
The holes are created by lower density plasma and charged particles which are due to the lack of energy and gas or when sun is at a less active point in its 11-year cycle. Sun’s magnetic field, which is open to interplanetary space, is letting out particles at a speed of 800 kilometers per second. The process is called a high-speed solar wind stream.
Fortunately, these holes on Sun’s outermost layer are not harmful to humans but they can create a geomagnetic storm or a temporary interfere with Earth’ systems if the cloud of magnetic field interacts with Earth’s magnetic field. The result will be no more than disturbing satellite communication and high altitude radio signals. Many solar storms have been experienced before and the last noticeable occurred in June 2015.
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The coronal hole cannot be seen with the naked eye (though, it’s already difficult to watch sun with human eye). The image is taken at an ultraviolent wavelength, which is shorter than visible light. The Solar Dynamics Observatory is orbiting Sun since 2010 and is observing the aspects connected with sun-earth relationship, directly affecting life and society.