Earth is has it's own protective magnetic shield, called the magnetosphere. The magnetosphere blocks much of the harmful solar and cosmic particle radiation. This magnetic field is immense, but actually quite weak, only about 1 Faraday in strength. But did you know that our magnetic field reve...
The answer lies in how the sun generates itsmagnetic field. As a typical star our sun is a ball of hot gas, more than a hundred times the diameter and hundreds of thousands of times more massive than the Earth. Inside the sun, the effects of heat, pressure and motion produce electrical...