A vibrant cosmic scene with a glowing portal amidst a starry sky and rocky terrain.

Beneath the vast expanse of a star-studded night sky, a mesmerizing portal to another dimension opens. The portal, a radiant swirl of colors, transitions from fiery oranges and yellows at its core to vibrant pinks, purples, and blues, creating a cosmic rainbow effect. It is framed by ethereal, electric-like tendrils that seem to pulse with energy, adding a sense of dynamic movement to the scene. The portal's glow illuminates a rugged, alien landscape below, where jagged, snow-capped mountains rise majestically. The terrain is a mix of stark white and deep purples, suggesting a cold, otherworldly environment. The ground is uneven, dotted with large, angular rocks and boulders, hinting at a desolate yet awe-inspiring wilderness. The overall atmosphere is one of wonder and mystery, inviting the viewer to imagine what lies beyond the portal. The interplay of light and shadow, combined with the vivid colors and intricate details, creates a captivating visual experience that feels both otherworldly and inviting. This image is perfect for content related to space exploration, fantasy landscapes, or any theme that seeks to evoke a sense of the unknown and the sublime.