Scientists may have recorded electrical activity—nicknamed “mini lightning”—in Mars’ atmosphere for the first time, using audio and electromagnetic data from NASA’s Perseverance rover.

The discharges were linked to dust devils and dust storm fronts in the Jezero Crater region, suggesting Mars can generate atmospheric electricity.

The findings, analyzed over 28 hours of recordings spanning two Martian years, have implications for Martian chemistry, climate, habitability, and future exploration.

Some experts caution that because the discharges were only heard and not visually observed, uncertainty remains about whether they constitute true lightning, the BBC reports.

If confirmed, Mars would join Earth, Jupiter, and Saturn as planets known to experience atmospheric electrical activity.