As the icy, ocean-filled moon Europa orbits Jupiter, it withstands a relentless pummeling of radiation. Jupiter zaps Europa’s surface night and day with electrons and other particles, bathing it in high-energy radiation. But as these particles pound the moon’s surface, they may also be doing something otherworldly: making Europa glow in the dark.
![](https://scx1.b-cdn.net/csz/news/tmb/2020/europaglowsr.jpg)
Source:
https://phys.org/news/2020-11-europa-bright-jupiter-moon.html