Theris
Theris is a fictional planet featured in the science fiction novel "The Sparrow" by Mary Doria Russell. It is the primary destination of the first contact mission to an alien civilization, the *Sophians*. Theris is described as a world with a unique ecosystem and a technologically advanced, yet deeply religious, sentient species.
The planet's atmosphere is breathable for humans, though with some notable differences from Earth's. The dominant
The narrative of "The Sparrow" unfolds as the mission to Theris attempts to understand the Sophians and