A lonely rover toiling among the sands of Mars has now answered an age-old question: If lightning crackles on the red planet and no one hears it, does it still make a sound? In recordings obtained by NASA's Perseverance rover , scientists have identified, for the first time, electrical discharges captured during Mars's wild dust events and whirling dust devils – not once, but 55 times over two Martian years of observation. Crucially, the dusty weather in which these events appeared reveals the