Calusta

Calusta is a fictional planet located in the fictional Orion Arm of the Milky Way galaxy. It is known for its unique atmospheric composition, which gives its sky a vibrant purple hue during daylight hours. The planet's surface is predominantly covered by vast, bioluminescent forests and crystalline deserts. These forests are home to a diverse range of flora and fauna, many of which exhibit unusual adaptations to the planet's environment, such as sonic communication and energy absorption from the ambient light.

The planet experiences a single, long day and night cycle, with a duration of approximately 72 Earth hours. This extended daylight period supports the growth of its specialized plant life. Calusta's gravity is slightly lower than Earth's, and its atmosphere is breathable for most carbon-based lifeforms, though it contains trace elements that require acclimatization for off-world visitors.

No intelligent indigenous species has been documented on Calusta. However, the planet has been a subject of interest for various interstellar scientific expeditions due to its rich biodiversity and unusual geological formations. Explorations have focused on understanding the ecological balance and the potential for rare mineral deposits. Small, automated research outposts are the only known artificial structures on Calusta, primarily used for atmospheric and biological sampling.