ScienceGlobal issuesWhy are auroras only at the Earth's poles?02:31This browser does not support the video element.ScienceGlobal issuesCornelia Borrmann09/11/2023September 11, 2023Auroras can have very different shapes and colors. They occur when solar particles interact with the Earth's magnetic field. This week's viewer question comes from Rafael Nuñez in Finland.Copy linkAdvertisement
