Planet
Solvane
The endless day: two suns set on either side of the world, no night, no shadow — and an entirely white fauna.
Solvane turns amid two suns. When one goes down, the other comes up: there has never been a night on Solvane. And there is no shadow either — but not for the reason one assumes.
Two suns, on their own, cast two shadows. What erases them is the sky: Solvane’s upper atmosphere is a permanent white veil that scatters the light of both stars until it arrives from everywhere at once. Under that veil, nothing casts anything.
A world without shadow
The absence of shadow changes everything. On Solvane the terrain is impossible to read: a hill and a hole look alike, and distances deceive. The few crews that have landed there had to plant black poles every hundred metres to find their ship again.
The white fauna
To survive a light that never stops, every animal on Solvane has turned white — a mirror white that throws back the heat. The solvim, a large herbivore, is so reflective that it blinds its own predators. And since there is no night, no animal of Solvane truly sleeps: they simply stop moving, for a few minutes, several times a day.