Northern Lights Over Frozen Tundra at Night

Violet and emerald ribbons of aurora borealis ripple horizontally across a dark sky above a flat, frozen expanse. The ground stretches endlessly in shades of slate gray and deep blue, capped with a layer of dry, crystalline frost that catches the faint ambient glow. A solitary lighthouse beam sweeps across the horizon, casting a thin, bright wedge of white light that cuts through the darkness and illuminates the texture of the ice. The air appears sharp and clear, allowing the celestial display to stand out with high contrast against the black void. The composition places the horizon line low, showing the vastness of the sky. A faint reflection of the green light shimmers on a patch of smooth ice in the immediate foreground.