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The concept of the technosphere provides a framework for understanding the scale of human impact on Earth. The term was coined by Peter K. Haff, and it is defined as the global network of human-made artifacts: a physical layer of infrastructure, buildings, vehicles, and machinery that functions alongside the biosphere and atmosphere. Currently estimated at 30 trillion tons, this human-constructed mass is dominated by the built environment. In this context, architecture serves as the primary interface, shaping how technology interacts with local ecologies. However, it seems that soon, the Technosphere will no longer be confined to the terrestrial surface. Through NASA's Artemis program, this network of human-made mass is expanding beyond Earth's atmosphere and is looking to establish new orbital infrastructure that represents the first permanent off-world extension of this man-made system.

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ArchDaily is looking for a proactive and curious architect to be part of our Projects Collaborator Program. As a part-time program participant, you will be working with the team in charge of curating and coordinating all built project publications on ArchDaily.

Spaces of retreat continue to offer fertile ground for unbuilt exploration, revealing how architecture can support rest, reflection, and immersion in nature amid shifting environmental and cultural conditions. In this Unbuilt edition, submitted by the ArchDaily community, the selected projects assemble a diverse range of proposals that reconsider hospitality through the lens of refuge. These works position accommodation not as spectacle or excess, but as spatial frameworks shaped by landscape, climate, material restraint, and shared experience.

Across distinct geographies, from Southeast Asian hillsides and Indonesian coastlines to African wilderness, Alpine terrain, Middle Eastern landscapes, and North American forests, the proposals demonstrate varied architectural responses to sensitive sites. They include elevated structures that hover lightly above steep ground, temporary lodge systems embedded in remote ecologies, reconstructed mountain shelters grounded in memory and reuse, courtyard-centered communal stays shaped by lifestyle cultures, contemplative desert retreats, and inclusive woodland camps designed for accessibility and environmental balance.

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