Nystrath

Nystrath is a fictional celestial body featured in the science fiction novel "The Sky Below" by author Elias Thorne. It is described as a rogue planet, meaning it does not orbit a star and drifts through interstellar space. Nystrath is characterized by its extremely low surface temperature and the presence of a faint, internal bioluminescent glow emanating from its core, which provides the only source of light and heat on its frigid surface. The novel suggests that Nystrath possesses a thin, methane-rich atmosphere that is largely frozen. Life on Nystrath, as depicted in the story, consists of extremophile organisms that have adapted to the planet's harsh conditions, utilizing chemosynthesis and the planet's internal heat for survival. The discovery and exploration of Nystrath form a central plot point in "The Sky Below," as a deep-space research vessel ventures into its uncharted territory to study its unique ecosystem and geological composition. The planet's isolation and the peculiar nature of its lifeforms pose significant challenges and dangers for the human explorers.