NASA’s Perseverance rover detects electrical discharges on Mars

NASA’s Perseverance rover has recorded evidence of electrical activity in the atmosphere of Mars, detecting electrical discharges described by scientists as “mini-lightning.” These events are often linked with dust devils – small whirlwinds that frequently traverse the planet’s surface.

• Data Captured by SuperCam Instrument
Since landing in Jezero Crater in 2021, the six-wheeled rover has collected audio and electromagnetic recordings of these discharges using its SuperCam remote-sensing instrument. The findings reveal the specific dusty conditions required to generate electricity in Mars’ thin, arid atmosphere – a phenomenon long suspected but never directly observed.

• Mars Joins Planets with Atmospheric Electricity
This marks the first documentation of electrical activity on Mars, placing it alongside Earth, Saturn, and Jupiter as planets with known atmospheric electricity. Researchers suggest other worlds, such as Venus, Uranus, and Saturn’s moon Titan, may also exhibit similar phenomena.

• How Lightning Forms in Dry Environments
Lightning occurs when turbulent atmospheric conditions cause particles to rub together, building charge until a discharge occurs. While strongly associated with water clouds on Earth, lightning can also occur in dry environments, such as volcanic ash plumes and sandstorms, demonstrating that wetness is not required for electrical activity.

Source: ScienceAlert & DD News