Sculptors masterfully weave celestial and cosmic elements into their metal artworks through a blend of creativity and technical precision. One common approach involves etching intricate star patterns or galaxy swirls onto metal surfaces using specialized engraving tools, often enhanced with patina finishes to mimic the depth of space. Others incorporate actual meteorite fragments or luminescent materials that glow like distant stars under UV light.

Advanced techniques include welding layered metal sheets to create 3D nebula effects, or employing electroforming to build organic, crater-like textures reminiscent of planetary surfaces. Many artists study astronomical imagery to accurately portray constellations, often using perforation methods to allow light to pass through, creating stunning shadow constellations when illuminated.

Contemporary sculptors also experiment with kinetic elements, crafting rotating planetary systems from precision-balanced metal components, or embedding LED lighting systems to simulate pulsars and supernovae. The interplay of polished and textured surfaces often mimics the contrast between cosmic voids and radiant celestial bodies. Some even incorporate sound elements, using carefully tuned metal pieces to produce ethereal tones when moved by wind, evoking the "music of the spheres" concept from ancient astronomy.

These cosmic-inspired works frequently employ metals like bronze for its warm, sun-like tones, or stainless steel for its reflective, futuristic quality that captures shifting light like orbiting celestial objects. Through these innovative methods, sculptors transform cold metal into breathtaking representations of the universe's grandeur.