Io (Sol 5a)

Io (Sol 5a) is a moon of [Jupiter](https://robertsspaceindustries.com/galactapedia/article/Vy2OMo22wz-jupiter-sol-v) (Sol V), [United Empire of Earth](https://robertsspaceindustries.com/galactapedia/article/VyvyKxy4v6-united-empire-of-earth) (UEE). Due to tidal heating and the presence of a subsurface ocean of molten and solid rock, Io is the most geologically active object in the [Sol system](https://robertsspaceindustries.com/galactapedia/article/Rz2zy6DGB5-sol-system). Armor manufacturer Caldera utilizes the surface of Io as a testbed for its newest environmental suits.