The Juno spacecraft detected over 1,600 individual whistler events from lightning on Jupiter, far more than all previous observations combined. This expanded database allows a more accurate estimation of Jupiter's lightning flash rate of 1-30 flashes per square kilometer per year, significantly higher than most previous estimates. Juno also detected high-frequency radio signals from Jupiter's lightning extending up to 1.2 GHz, revealing that Jovian lightning involves faster processes than previously thought and has a pulse duration of a few hundred microseconds. These new observations from Juno provide improved understanding of lightning on Jupiter and its role in atmospheric dynamics and chemistry.