[177] Thraxisp - a hypothetical habitable satellite of an extrasolar gas giant, developed with Larry Niven, William Hartmann, Joel Hagen, Rick Sternbach, Paul Preuss, and Pat Ortega as part of a world-building project in 1980. It is likely the first depiction of the hot spot "eye" of a tidally locked exoplanet. Acrylic on illustration board. © Don Dixon
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