Marsilla
Marsilla is a fictional planet featured in the science fiction novel "Echoes of the Andromeda" by author J.L. Sterling. The planet is described as a tidally locked world, with one side perpetually facing its star and the other in eternal darkness. This unique astronomical condition creates extreme environmental contrasts across its surface. The star-facing side is a scorched desert, characterized by intense heat and radiation, rendering it largely uninhabitable. In stark opposition, the dark side experiences perpetual frigid temperatures, covered in vast ice sheets and frozen landscapes.
Between these two extremes lies a narrow habitable zone known as the Twilight Belt. This region experiences