The Sun

Since the birth of mankind, the Earth has been lit by the vibrant light of our closest star, The Sun. The sun, which is roughly 1 au from the earth, is a giant ball of burning gases, without much solid. The Sun was “born” approximately 5 billion years ago, as it began it’s formation in a huge cloud of gases. As the materials condensed, high temperatures and great pressures built up at the center. These conditions …showed first 75 words of 251 total…

…showed last 75 words of 251 total…difference in mass is expelled as energy and is carried to the surface of the Sun, through a process known as convection, where it is released as light and heat. Energy generated in the Sun's core takes a million years to reach its surface. Every second 700 million tons of hydrogen are converted into helium ashes. In the process 5 million tons of pure energy is released; therefore, as time goes on the Sun is becoming lighter.