Its said That Three things cannot be long hidden: the sun, the moon, and the truth . The Sun is mostly composed of hydrogen (70%) and Helium (28%) . The Sun is 109 times wider than the Earth and 330,000 times as massive. Usually when the sun is at full swing then it gets very difficult to bear and avoid its heat , could be very annoying for you , but according to medical SUN is very important for human beings , it gives VITAMIN-D to us and so we have to make sure that we take as much sun rays from sun and protect our self at the same time from the scorching rays . There could be One million Earths could fit inside the Sun , and its like a spherical ball shape but my GOD its very powerful .
SOURCES: DEE ROTHMAN