A breathtaking expanse of the cosmos stretches overhead, with radiant stars and swirling nebulae painting a mesmerizing tapestry across the night sky. Majestic mountains stand silhouetted against the backdrop, their peaks bathed in a gentle, silvery moonlight. In the distance, planets drift serenely, adding a sense of mystery and wonder to the scene. Ethereal rivers, aglow with an otherworldly light, weave through the landscape, their luminescence casting vibrant hues of azure, crimson, and violet. The scene is intricately detailed and artistically rendered, capturing the enchanting beauty of a cosmic wonderland, ideal for a stellar-themed wallpaper.