Prompt

A mystical universe on a coffee cup reveals a celestial landscape, with swirling galaxies, shimmering stars, and ethereal nebulas. The colors are deep and rich, with a cosmic palette of purples, blues, and golds. The cup is captured in a style inspired by astrophotography, with a long exposure technique to capture the faint glow of distant stars. The image has a sense of awe and wonder, with a touch of cosmic mystery.