The sun is a huge ball of gas made of 70% hydrogen and 28% helium. Its about  865,000 miles in diameter, which is about 109 times of the Earth's diameter. Over 1.3 million Earths could fit inside this star, and about 98% of the mass in the solar system is accounted by the sun. It has a surface temperature of about 10,000 degrees F. From the Earth to the sun it is about 93 million miles away. The pressure at the sun's core is more than 150 times of water. The sun produces 386 billion megawatts, by nuclear fusion. About every 27 days the sun makes a complete rotation on its axis.The sun is around 4.5 billion years old. For about another 5 billion years it will continue to burn, or radiate. It will luminate(glow) for about double that ammount. Eventually one day it will run out of hydrogen, its fuel, forcing it to go into radical changes, ultimately resulting in the destruction of the sun, and Earth.