THE STELLAR SUN
As a star, the Sun is the source of energy which sustains all life on planet Earth. It is the earth's universal timekeeper, defining the seasons, the harvests, even the sleep patterns of the creatures populating our planet. Yet, the Sun is only one of 100 billion stars in our Galaxy alone. With the Universe containing 100 billion galaxies, each filled with stars, we see that our Sun is hardly special. Our star does possess one outstanding quality which may make it unique in the Universe: it is orbited by a planet teeming with life.