Stealth Superstorms Reveal Lightning on Jupiter: Beyond the Superbolt

NASA’s Juno spacecraft passed north to south (yellow track) over Jupiter’s atmosphere in August 2022, detecting a cluster of radio pulses from lightning (turquoise circles). A background map from the Hubble Space Telescope identified the lightning source as an isolated “stealth superstorm.” The inset shows a previous stealth superstorm plume from JunoCam data. Credit: NASA/JPL-Caltech/SwRI/MSSS/Björn Jónsson (JunoCam); Wong et al., 2026, https://doi.org/10.1029/2025AV002083; HST and Juno MWR