Physicists have long known that the Sun's magnetic fields make its corona much hotter than the surface of the star itself. But how -- and why -- those fields transport and deposit their energy is still a mystery, as Philip G Judge explains
@article{arxiv.2211.17098,
title = {The enduring mystery of the solar corona},
author = {Philip G. Judge},
journal= {arXiv preprint arXiv:2211.17098},
year = {2022}
}