Solar flareCanonLegendsInfinitiesSolar flares were a stellar weather phenomenon. Dying stars on their way to going supernova could produce violent flares which emitted radiation capable of killing many species. Sources Star Wars: Battles that Changed the GalaxyAppearancesThe High Republic: Into the Dark (Unknown)Unknown UnknownNoneThe High Republic: Into the Dark audiobook (Unknown)Unknown UnknownNoneThe High Republic: Out of the Shadows (Mentioned only) (Unknown)Unknown UnknownNoneThe High Republic: Out of the Shadows audiobook (Mentioned only) (Unknown)Unknown UnknownNonePadawan (Mentioned only) (Unknown)Unknown UnknownNonePadawan audiobook (Mentioned only) (Unknown)Unknown UnknownNoneMace Windu: The Glass Abyss (Unknown)Unknown UnknownNone"Luke on the Bright Side" — Stories of Jedi and Sith (Mentioned only) (Unknown)Unknown UnknownNone"Luke on the Bright Side" — Stories of Jedi and Sith audiobook (Mentioned only) (Unknown)Unknown UnknownNoneShadow Fall (Mentioned only) (Unknown)Unknown UnknownNoneShadow Fall audiobook (Mentioned only) (Unknown)Unknown UnknownNoneStar Wars: The Last Jedi: Expanded Edition (Unknown)Unknown UnknownNoneStar Wars: The Last Jedi: Expanded Edition audiobook (Unknown)Unknown UnknownNone