A celestial wonder, the Sun is a huge star formed from a massive gravitational collapse when space dust and gas from a nebula collided, It became an orb 100 times bigger and weighing over 300,000 times that of Earth. Made up of 70 per cent hydrogen and about 28 per cent helium (plus other gasses), the Sun is the centre of our solar system and the largest celestial body anywhere near us. The surface of the Sun is a dense layer of plasma at a temperature of 5,800 degrees kelvin that is continually moving due to the action of convective motions driven by heating from below.These convective motions show up as a distribution of what are called granulation cells about 1,000 kilometers across and which appear across the whole solar surface. At its core, the Sun’s temperature and pressure are so high and the hydrogen atoms are moving so fast that it causes fusion, turning hydrogen atoms into helium. Electromagnetic radiation travels out from the Sun’s core to its surface, escaping into space as electromagnetic radiation, a blinding light, and incredibly high levels of solar heat. In fact, the core of the Sun is actually hotter than the surface, but when heat escapes from the surface, the temperature rises to over 1-2 million degrees.
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A celestial wonder, the Sun is a huge star formed from a massive gravitational collapse when space dust and gas from a nebula collided, It became an orb 100 times bigger and weighing over 300,000 times that of Earth. Made up of 70 per cent hydrogen and about 28 per cent helium (plus other gasses), the Sun is the centre of our solar system and the largest celestial body anywhere near us. The surface of the Sun is a dense layer of plasma at a temperature of 5,800 degrees kelvin that is continually moving due to the action of convective motions driven by heating from below.These convective motions show up as a distribution of what are called granulation cells about 1,000 kilometers across and which appear across the whole solar surface. At its core, the Sun’s temperature and pressure are so high and the hydrogen atoms are moving so fast that it causes fusion, turning hydrogen atoms into helium. Electromagnetic radiation travels out from the Sun’s core to its surface, escaping into space as electromagnetic radiation, a blinding light, and incredibly high levels of solar heat. In fact, the core of the Sun is actually hotter than the surface, but when heat escapes from the surface, the temperature rises to over 1-2 million degrees.