Odros

Odros is a fictional planet featured in the science fiction novel "The Mote in God's Eye" by Larry Niven and Jerry Pournelle. It is the homeworld of the Moties, an alien species encountered by humanity. Odros is a tidally locked planet orbiting a red dwarf star, meaning one side perpetually faces the star while the other is in eternal darkness. This results in extreme temperature variations across the planet's surface, with a habitable band existing between the scorching "sunward" side and the frozen "darkward" side.

The Moties have developed a complex and often desperate civilization on Odros, shaped by the planet's harsh environment and their own biological imperatives. Their society is characterized by a rigid caste system and a focus on resource management due to the limited habitable areas. The planet itself is depicted as a world of stark contrasts, with advanced technology coexisting with primitive survival strategies. The unique conditions on Odros have played a significant role in shaping the Moties' culture, technology, and their interactions with other species, particularly humans, when they first make contact.