Rethinking Life's Building Blocks: Expanding the Search for Alien Life Beyond Carbon and Water
Original framing: “‘Project Hail Mary’ explores unique forms of life in space – 5 essential reads on searching for aliens that look nothing like life on Earth” — The Conversation - Global
The core of the story is scientific, outlining the limits of carbon‑based life models and summarising recent research on silicon‑based, ammonia‑based, and other exotic chemistries. It cites peer‑reviewed studies and emphasizes methodological shifts needed for future missions, anchoring the argument in robust evidence.
The article foregrounds a scientific imperative to broaden the definition of life, while simultaneously exposing the historical Euro‑centric bias that has limited astrobiology's scope.
Integrating Indigenous cosmologies and other cross‑cultural insights can disrupt this bias, offering alternative ontologies that enrich both scientific inquiry and artistic imagination. Future modelling must incorporate these plural perspectives to design detection technologies that are truly inclusive of non‑carbon possibilities. By embedding marginalized voices and fostering interdisciplinary consortia, the search for alien life becomes a systemic endeavour that bridges science, culture, and spirituality, opening pathways to discoveries beyond our current imagination.