But those rainbow trout — identifiable by iridescent colors running down their sides — are blocked from journeying to the ocean and back by man-made barriers.

The clothes: Cocooned hoods, floor-grazing trench coats with a kind of backward veil, cinched jackets with ’80s proportions in leopard-printed pony hair and an iridescent shorts suit the color of rich amber.

Roan jumped around in a hot pink and electric blue lucha libre wrestler’s outfit made of latex, with iridescent leather accessories including a belt, mask, shin guards and wrist and upper arm cuffs.

There were still clouds, but so wispy they had an iridescent sheen like spun sugar.

When they slammed into Earth’s magnetic bubble, the world was treated to iridescent displays of the northern and southern lights.