Two articles, one published in “Journal of Geophysical Research: Space Physics” and one published in the journal “Icarus”, describe a research on ultraviolet auroras detected on Mars by ESA’s Mars Express space probe. Jean-Claude Gérard and Lauriane Soret of the University of Liege, Belgium, led a team of scientists who examined ten years of data that were analyzed to understand the mechanisms of creation of these auroras.