A terrestrial gamma-ray flash and ionospheric ultraviolet emissions powered by lightning. - Neubert, Torsten; Østgaard, Nikolai; Reglero, Victor; Chanrion, Olivier; Heumesser, Matthias; Dimitriadou, Krystallia; Christiansen, Freddy; Budtz-Jørgensen, Carl; Kuvvetli, Irfan; Rasmussen, Ib Lundgaard; Mezentsev, Andrey; Marisaldi, Martino; et al. (Science (pre-March 2025), 2020)