Check out the first-ever map of the solar corona’s magnetic field
Future telescopes could make similar maps to predict solar eruptions
![Sun's magnetic field](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/08/082020_lg_mappingsun_feat_alt.jpg?fit=1028%2C579&ssl=1)
The colored fringes of this image show the strength of the corona’s magnetic field, from lower strength (blue) to higher (yellow). The whole field’s strength is just a fraction that of a refrigerator magnet. The image of the sun in the middle was taken by NASA’s Solar Dynamics Observatory.
Z.-H. Yang et al/Science 2020