cosmos background with realistic stardust, nebula, moon and shining stars.

abstract alien backdrop backdropcosmos backdropgenerative background backgroundcolorful backgroundgenerative beautiful blue bright celestial clouds colorful constellation cosmic cosmos dark design energy explosion fantasy fiction galaxy glowing illustration infinity interstellar landscape light modern moon nature nebula night orbit outdoor planet realistic science shining shiny sky solar space sparkle star stardust starlight starry stars sun system telescope texture univers universe vector wallpaper world