stunning cosmic landscape featuring vibrant nebulae and stars in a colorful space scene, perfect for astronomical themes

nebulae galaxy stunning cosmic landscape vibrant star colorful space scene perfect background impression lightyear illusion scenery atmosphere gravity stellarwind cluster expanse cosmo element aesthetics astralplane planet energy universe spectral heaven emission spectrum exotic beauty stellar mystery twilight swirl design celestial dimension spiral photograph structure visual ethereal orbit shimmer highlight journey featuring stars astronomical themes generative