What is Proxima Fusion Stellaris?

Proxima Fusion's Stellaris is a stellarator-type fusion power plant concept, a design that confines superheated plasma using a complex, twisted arrangement of external magnetic coils rather than the simpler ring-shaped coils of a tokamak. Because a stellarator's magnetic field is shaped to hold the plasma in a stable equilibrium without needing an internal current driven through the plasma itself, the design is intended to run continuously rather than in the pulsed cycles that tokamak fusion reactors typically require.