About 4.6 billion years ago in a cloud of dust and gas between the stars started to shrink. When the clouds become more dense, it will not let the light pass through. The process shrink the volume took place until the cloud of gas is compressed to the point of its surface temperature was pushing up 1000 Kelvin. At that time it will glow in the universe like a star. At this point the scientists say that it has entered the early stages of the Sun.
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