NASA’s Orbiter Captures the First Confirmed Lightning Evidence in Mars Atmosphere
The Daily Galaxy • • science
Key Points:
- For the first time, researchers detected a lightning whistler signal on Mars using the MAVEN spacecraft's Langmuir Probe and Waves sensor, indicating electrical discharges occur within Martian dust storms despite the absence of visible lightning bolts.
- The observed electrical activity is caused by triboelectric charging as dust particles rub together in Mars' thin atmosphere, producing weaker sparks compared to Earth due to the planet's low atmospheric pressure.
- The detected signal's frequency decay allowed scientists to confirm it originated below the ionosphere, within the weather-active layers, and traveled through localized crustal magnetic fields unique to Mars.
- This electrical activity influences Martian atmospheric chemistry by breaking apart molecules like carbon dioxide and water vapor, facilitating the formation of compounds such
