In sudden bursts, solar flares erupt from the Sun’s surface, producing atmospheric temperatures exceeding 10 million degrees. “However, nobody had previously connected work in those fields to solar flares.”Rethinking Solar PhysicsTraditional solar physics has long assumed that ions and electrons remain at the same temperature within solar plasma. The new study presents a paradigm shift: ion temperature differences may be the real driver behind the puzzling line widths. “The two missions complement each other extremely well and together will provide an unprecedented understanding of solar flares,” Dr. Russell concluded. The paper, “Solar Flare Ion Temperatures,” appeared in The Astrophysical Journal Letters on September 3, 2025.