Architecture here becomes a cosmic instrument. Conceived as a spatial embodiment of the solar system, the Astronomy and Space Science Gallery transforms abstract astronomical phenomena into an immersive, navigable experience. A luminous central void acts as the sun, anchoring a constellation of orbiting galleries that choreograph the visitor’s journey from the familiar to the infinite. At its core, a spherical planetarium appears to levitate above an amphitheatre, collapsing structure, spectacle, and learning into a single architectural moment—where science is not merely observed, but physically inhabited.

As India’s largest facility dedicated to astronomy and space science, the Gallery forms a key component of Gujarat Science City, a State Government initiative aimed at cultivating scientific awareness and inquiry. Located on a one-hectare hexagonal plot, it sits alongside the Aquatic and Planet Earth Galleries, together forming a symbolic triumvirate of water, earth, and space. Spanning 8,500 sqm, the project embodies the principles of public architecture—openness, inclusivity, cultural enrichment, and collective learning—making complex scientific ideas accessible to visitors of all ages and backgrounds.

The architectural vision draws direct inspiration from the forms, motions, and patterns of the cosmos—the very subject the building celebrates. The visitor journey unfolds as a layered, story-rich exploration, moving from the Solar System through galactic neighborhoods to the farthest frontiers of space. Physical exhibits, augmented reality, and multimedia installations are woven together to create immersive environments that combine education with wonder.

The Gallery is organized into five distinct blocks: a three-storey central atrium enclosed within a transparent glazing system, surrounded by four peripheral blocks. This configuration forms a powerful architectural metaphor for the Solar System, with the four surrounding blocks subdivided into pairs to symbolise the eight planets orbiting around the Sun. Suspended dramatically within the atrium is a monumental 24-metre diameter brass-plated globe representing the sun, supported on peripheral steel structures and hovering above an amphitheater-style event space, serving as the spatial and experiential anchor for visitors. It houses the planetarium, which is accessed via a bridge at the upper level, reinforcing the perception of a celestial body suspended in space.

Encircling corridors on the upper floors offer continuous views of the complete solar system model, with eight planet sculptures orbiting the central globe. Parapet walls are lined with interpretive graphics that communicate planetary science, while experiential elements such as a working Foucault’s Pendulum and a mechanical Orrery deepen public engagement with fundamental astronomical principles. An observatory extends the experience beyond representation, allowing direct interaction with the cosmos through telescopic viewing and educational workshops.

From the central atrium, visitors move through three levels of galleries within the peripheral blocks, thematically organized along a timeline exploring the past, present, and future of astronomy and space science. Immersive interiors featuring illuminated exhibits, interactive installations, and audio-visual media blur the boundaries between learning and entertainment. Outdoor exhibits and observation decks further extend the journey, transforming the act of looking at the stars into a shared civic experience.

Materials and Construction Technology:
To realize the building’s elevated, floating concept and dynamic geometry, the structure incorporates large cantilevered galleries supported on steel bracings, along with a vast 34 × 34 meter central atrium that houses the planetarium and amphitheater. Steel was selected as the primary structural material for its strength, flexibility, and capacity to articulate complex forms, enabling a careful balance between engineering precision and architectural expression.

The spherical planetarium, crafted entirely in steel, is supported on four V-shaped columns, creating the striking illusion of levitation above the space below. The atrium is enclosed within a high-performance glazed envelope that ensures transparency, daylight penetration, and visual connectivity across levels. Externally, the building is wrapped in perforated metal screens that provide solar shading and reduce heat gain, while generating a kinetic façade that responds to changing light and shadow—reinforcing the gallery’s futuristic and lightweight character.

Sustainability Features:
The Gallery is designed to meet high global sustainability benchmarks through an integrated set of passive and active strategies. These include solar shading devices, high-performance glazing, rainwater harvesting and reuse systems, energy-efficient central cooling, on-site solar photovoltaic installations, water-efficient plumbing fixtures, operable windows, and daylight sensors. Together, these measures ensure environmental responsibility while supporting long-term operational efficiency.

In line with India’s broader vision of fostering scientific temper, the Astronomy and Space Science Gallery plays a critical civic role in cultivating curiosity, rational thought, and inquiry. By translating complex scientific ideas into spatial, experiential narratives, the project redefines the public educational facility—not as a static repository of information, but as a living, participatory landscape of discovery that invites wonder, dialogue, and collective imagination.