A solitary rose blooms from the fractured visor of a forgotten astronaut's helmet, floating serenely in the vastness of open space. The intricacies of the petals contrasting against a backdrop of swirling galaxies and nebulae create a stunning photorealistic tableau. The scene is captured in exquisite detail with hyper-realistic textures, enhanced by volumetric lighting that casts gentle, ethereal glows across the scene. The cosmic panorama is rendered in breathtaking 8k resolution, highlighted by the use of HDR to accentuate the depth and vibrancy of colors. The aspect ratio is 9:16, drawing the viewer into an immersive vertical journey through this celestial wonderland.