A biomechanical eye made of shifting nanites, suspended in a zero-grav

A biomechanical eye made of shifting nanites, suspended in a zero-gravity chamber. Its iris constantly recalculates probabilities fractals of possible futures flicker across its surface. Occasionally, a single tear of mercury falls and freezes mid-air. 8K sci-fi realism, ‘Alien’ meets ‘Ghost in the Shell’, cold metallic lighting