Cosmology2026-05-252 minarXiv:2605.26265expressHow Solar X-rays Catch Invisible ParticlesTiny invisible bullets pass straight through the Sun, barely noticing its matter. These are axions — hypothetical particles so light and elusive that they are often compared to ghosts.Tiziano Zanzarella·Francisco R. Candón·Maurizio Giannotti·Marco Regis·Jaime Ruz·Marco Taoso·Elisa Todarello·Julia K. VogelAdam RiessAlan GuthAlbert EinsteinaxionneutrinoX-ray radiationHiggs bosonhadron👍👎☆SimplePopularAdvanced