cosmic background with a blue purple nebula and stars

nebula space sky nebular smoke star galaxy cosmology energy constellation abstract astronomy background render rendering alien planet landscape view astro astrology beautiful blue celestial cosmic cosmos desert extra-terrestrial extraterrestrial fantasy futuristic lunar-like martian moon mystery nature outer planetarium planetary rocky scenic sci-fi science aerial stars sun surface travel universe red-violet horsehead unusual colorful distant red renderbright majestic red-purple mountains exploration fiction backgrounds nebulabright bright deep vibrant multicolor starfield infinite nebulas purple