Pair of colliding galaxies called NGC 6240. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/441156/free-photo-image-hubble-star-public-domain-starsFree Image from public domain licenseAstronomy textbooks typically present galaxies as staid, solitary, and majestic island worlds of glittering stars. But… https://www.rawpixel.com/image/9976415/photo-image-galaxy-space-vintageFree Image from public domain license