The Sun is everlasting, omnipresent, the source of our energy and the life-giver for a little community of sentient beings on a modest planet like Earth . From the ionized hydrogen of a gas cloud like those we scattered across our sky, hydrogen and other elements came together by gravity and ignited nuclear fusion, creating our star . But our Sun is far from the largest stars, and the percentage of stars like the Sun in our galaxy is something like 7.5 .