Overview
- NASA reports that SuperCam identified 55 electrical events since 2021, including 16 during dust-devil overpasses near Perseverance in Jezero Crater.
- The signals appear as crackles and pressure spikes that match triboelectric discharges enabled by Mars’ low-pressure, CO2-rich atmosphere.
- Electrical activity correlated with local turbulence and convective storm fronts rather than with seasons of high global dust loading.
- Several detections likely came from the rover shedding built-up charge, highlighting the need to separate ambient phenomena from self-induced events.
- Researchers say these sparks could create strong oxidants that destroy organics and hasten methane loss, and they urge dedicated sensors since flashes are too small and fast to capture on camera.