Study finds Mercury's X-ray auroras powered by same mechanism as Earth's

Auroras form when charged particles from the Sun collide with a planet's magnetic field.
Mercury has a weaker magnetic field but still experiences auroras due to the solar wind.
Electrons accelerating in Mercury's magnetic field hit the surface, causing X-ray auroras.
This suggests auroras across the solar system share a common generation mechanism.
The findings come from the recent BepiColombo flyby of Mercury.