How do electrons close to Earth reach almost the speed of light?接近地球的电子如何达到几乎光速？ by Helmholtz Association of German Research Centres亥姆霍兹德国研究中心协会The contours in color show the intensities of the radiation belts. Grey lines show the trajectories of the relativistic electrons in the radiation belts. Concentric circular lines show the trajectory of scientific satellites traversing this dangerous region in space. Credit: Ingo Michaelis and Yuri Shprits, GFZ颜色轮廓显示了辐射带的强度。灰线显示了辐射带中相对论电子的轨迹。同心圆线表