"Secrets of the Sun", the five-part series, concludes with description of the heat found on the surface of the sun. So how is it that the outer corona is as hot as the sun's core? The answer will surprise you. Watch and learn how noise...

Solar storms is the topic of part four of the five-part series on the secrets of the sun. Learn about auroras, CMEs, solar flares and the damage it could cause here on Earth. The most interesting fact in this clip is the fact that solar...