life-sciences

Xenobiology & Alien Life

The science of alternative life forms — non-standard biochemistries, shadow biospheres, synthetic genetic polymers, silicon-based organisms, and the ultimate boundaries of extremophilic survival.

xenobiologyastrobiologyalternative biochemistryshadow biosphereXNAsilicon lifeextremophiles

Xenobiology investigates life beyond the familiar carbon-water-DNA paradigm. By asking what alternative chemistries could support self-replicating, evolving systems, researchers map the full possibility space of biology — from arsenic-tolerant bacteria in Mono Lake to hypothetical ammonia-solvent ecosystems on Titan. These explorations redefine what we mean by 'alive.'

These simulations let you engineer alternative biochemistries, detect shadow biosphere signatures, design XNA genetic polymers, model silicon-based metabolism, and push extremophiles to their thermodynamic limits — all with real-time interactive controls grounded in astrobiological research.

5 interactive simulations

simulator

Alternative Biochemistry Designer

Design non-carbon biochemistries — explore how solvent polarity, backbone element, and temperature range constrain the possibility space of alien life

simulator

Extremophile Survival Limits

Push extremophiles to their limits — model how temperature, pH, radiation dose, and salinity define the boundary of habitable space for life

simulator

Shadow Biosphere Detector

Simulate detection of a hypothetical shadow biosphere — organisms with non-standard biochemistry hiding in plain sight on Earth

simulator

Silicon-Based Life Simulator

Model silicon-based metabolism — explore how temperature, pressure, and solvent conditions determine whether silicon chemistry can support living systems

simulator

XNA Polymer Designer

Design xeno-nucleic acid polymers — explore how sugar backbone modifications affect base-pairing stability, replication fidelity, and information density