A stunning and ethereal space cowgirl elegantly rides a sleek, futuristic horse through a vibrant, cosmic wild west landscape, seamlessly blending rustic charm with sci-fi technology. Her attire is an intricate fusion of classic cowgirl aesthetics and advanced, space-age materials, reflecting the shimmering colors of distant galaxies. The scene is captured with ultra-realistic detail, showcasing every texture and nuance in breathtaking 8k clarity. Her hat, an artful blend of cowboy tradition and modern design, casts a soft shadow over her determined gaze. The backdrop is a majestic tapestry of swirling nebulae and twinkling stars, evoking a sense of endless frontier and adventure, as she embarks on her journey across this otherworldly, yet familiar terrain.