solex was said to have been discovered after an alien spacecraft crashed outside of robixcorp, shortly before prof. nemo's disappearance. it has two forms: the glowing electric blue liquid form prone to random energy fluctuations and the second, more stable crystallized form used in most robots. the story suggests that it has a psychic nature as it reacts to sentient thoughts and emotions, even those of robot's epus. solex in both liquid and crystallized form is capable of producing immense power. its "radioactive" glow (in crystallized form) is similar to pure isolated radium.