Saturday, May 12, 2012
The Sun (BBC documentary) video
Approximately 5 billion years old and just under 333,000 times the mass of Earth, discover the heart of our solar system and the driving force of life on Earth. The Sun is by far the brightest object in the sky. It’s so bright that during the day its light drowns out virtually everything else in space. Life on Earth is totally dependent on the the energy it receives from the Sun. The Sun's energy is produced when hydrogen atoms inside it fuse to form helium. The Sun consumes four million tons of hydrogen every second. Even so, it’s so vast that our star has enough fuel to keep it shining for another five billion years. The Sun’s energy output is estimated to be 386 billion, billion megawatts. So in 15 minutes our Sun radiates as much energy as mankind consumes in all forms, during an entire year. Check out this fabulous documentary to find out more fascinating information about our amazing Sun!