Bronze sculptures in relativistic and spacetime art often explore humanity's fascination with the cosmos, time, and multidimensional existence. Among the most prevalent themes is the depiction of cosmic expansion, where swirling, fluid forms symbolize the universe's infinite growth. Many artists use fragmented or elongated human figures to represent time dilation, a nod to Einstein's theory of relativity.

Another recurring motif is the "eternal spiral," where bronze coils evoke black holes or gravitational waves, merging scientific concepts with artistic expression. Sculptures featuring intersecting planes or warped geometries illustrate spacetime curvature, inviting viewers to ponder the fabric of reality.

Some works focus on celestial bodies, with textured bronze surfaces mimicking planetary surfaces or star clusters. Others incorporate clocks or hourglasses in abstract forms, blending temporal symbolism with relativistic distortion. A striking trend is the fusion of human and cosmic elements—faces emerging from nebulae or limbs stretching across imagined dimensions.

These themes reflect a broader artistic movement bridging science and philosophy, using bronze's malleability to materialize complex theoretical ideas into tangible, thought-provoking art.