The Sun explained to children: at the heart of this gigantic gas ball
Its age, its lifespan … Here is the Sun’s identity card! Nature : star Age : 4.6 billion years Estimated life : 5 billion years Ray : 700,000 kilometers Diameter : 1.4 million km, 109 times that of Earth Perimeter : 4.4 million km Description of the Sun 1. Solar crown. The solar corona stretches … Read more