Planet Xyleron, observed from space, appears as a glistening sapphire sphere shrouded in swirling azure clouds, hinting at its rich methane atmosphere. This celestial body, slightly smaller than Neptune, entices with its mysterious luminescence. The surface of Xyleron, as depicted in recent unmanned probe imagery, boasts sprawling landscapes dominated by vast crystal methane caves. These natural formations arise from unique geological processes where liquid methane, under intense cryogenic conditions, crystallizes into expansive, jagged ice caverns, reflecting an eerie blue light. The severe subzero temperatures, plummeting to approximately -180°C, preserve these caves in their brittle, glass-like state. The planet's weak gravitational pull and thin atmosphere culminate in slow, ethereal methane snowfalls, which contribute to the growth and morphology of these crystal structures by layering fresh deposits that shimmer under the occasional dim sunlight piercing the dense cloud cover. This alien terrain, untouched and pristine, presents a stark beauty—a frozen snapshot of geological artistry in the cosmos.