Newerth

Newerth is a fictional planet featured in the science fiction novel "A Deepness in the Sky" by Vernor Vinge. The planet is notable for its unique orbital mechanics and the advanced, yet cyclical, civilization that inhabits it. Newerth orbits a star that is part of a binary system, leading to periods of intense heat and light followed by prolonged darkness. These cycles are fundamental to Newerth's environment and culture.

The inhabitants of Newerth, known as the "Spiders" due to their appearance, have developed a highly sophisticated society that undergoes a repeating pattern of advancement and decline. During periods of light, their civilization flourishes, reaching technological peaks. However, as the planet enters its dark cycle, resources become scarce, and societal structures often collapse, leading to a "dark age." The Spiders then rebuild and re-advance as the light returns. This cyclical nature is a core theme explored in the novel, as it presents unique challenges for interstellar relations and long-term societal planning. The planet's technological prowess during its light cycles is significant enough to attract the attention of other species in the galaxy.