unknown galaxy surrounded by nebulae

galaxy space nebula sky universe background astronomy abstract star cosmos night light science outer planet starry glow solar astrology deep blue milky black infinity cosmic interstellar dark fantasy constellation world nature explosion orbit graphic wallpaper texture clouds nebulae color purple stars starlight bright outdoor creation celestial backdrop milkyway andromeda darkness education concept vector star field milky realistic expanse outerspace exploration atmosphere galactic mystical mystic cloud explore infinite eternity Unknown