glowing milky way and galaxies with stars, cosmic theme representing astronomy, suitable for science or educational institutions,

astrophotography international inspirational representing institutions astronomical interstellar educational planetarium exploration inspiration enthusiasts background stargazing astronomy inspiring celestial planetary phenomena discovery galaxies suitable universe learning galactic concepts graphics projects milkyway glowing science planets studies starlit wonders designs cosmic galaxy banner mockup wonder beauty lovers starry milky stars theme space night outer tools copy view day sky