Planet Glacius, observed from space, appears as a shimmering sapphire orb swathed in swirling white clouds. Its atmosphere, comprised mostly of nitrogen and trace methane, creates a stark contrast against the deep blue ice that covers its surface. This frozen terrain is predominantly structured by expansive crystal ice caverns, which sparkle under the weak sunlight of a distant star. The surface of Glacius is a testament to extreme cryovolcanic activity. The ice caverns, some several kilometers long, are formed by intermittent geysers that emit water vapor and ammonia, which instantly freeze and add layers to the already intricate lattice of ice walls. These caverns create surreal landscapes—vivid and ethereal, reflecting and refracting light into iridescent patterns. The most remarkable feature observed is the ‘Crystal Nexus’, a cavern so densely packed with reflective ice, it appears as a hall of mirrors from within, casting endless reflections of dim, scattered light across its facets.
