ouTube thumbnail, 16:9, graphic design. Dark spac...

YouTube thumbnail, 16:9, graphic design. Dark space/galaxy background in violet"indigo with soft nebula swirls, stars and slight vignette. Realistic gray moon on the right with a star-shaped light flare at its left rim. Layout: text occupies left ~60 percent, moon balances on the right; high contrast, crisp edges, HDR, clean modern look.