Illustrate a mesmerizing silver holographic universe, where ethereal colors dance and shimmer against a backdrop of endless space. Utilize digital painting techniques to create a cosmic scene filled with holographic stars, galaxies, and nebulae. The holographic effect should give the impression of depth and movement, with colors shifting and changing as the viewer's perspective shifts. Incorporate subtle hints of otherworldly hues such as iridescent purples, blues, and greens to enhance the surreal atmosphere. Pay special attention to the lighting, using soft, diffused light to highlight the holographic elements and create a sense of depth. Experiment with composition to draw the viewer into the enchanting world of the silver holographic universe, evoking a sense of awe and wonder at its beauty.