By Phil Livermore, University of Leeds and Jon Mound, University of Leeds, United Kingdom The Earth’s magnetic field surrounds our …
![](https://selfreliancecentral.com/wp-content/uploads/2018/02/NASA_54559main_comparison1_strip.gif)
By Phil Livermore, University of Leeds and Jon Mound, University of Leeds, United Kingdom The Earth’s magnetic field surrounds our …