Summary:
- NASA's Perseverance rover on Mars has captured the sound of dust devils, which are whirlwinds of dust, and found that they crackle with electricity.
- The electrical crackle is caused by the friction and collisions between the dust particles in the dust devil, which generate static electricity.
- This discovery provides new insights into the atmospheric and weather conditions on Mars, and how the planet's unique environment can produce interesting electrical phenomena.