Air Force in Space (1995) illustrated by Tish Tompkins. Original public domain image from Wikimedia Commons. Digitally… https://www.rawpixel.com/image/10184890/image-astronaut-face-personFree Image from public domain licensePNG Brain, medical illustration, transparent background https://www.rawpixel.com/image/11496503/png-face-medicineView licenseBlue space warp effect png, transparent background https://www.rawpixel.com/image/12654095/blue-space-warp-effect-png-transparent-backgroundView licenseCity view at night, starry sky. https://www.rawpixel.com/image/12653998/city-view-night-starry-sky-generated-image-rawpixelView licenseSci-fi light effect backdrop https://www.rawpixel.com/image/12642669/sci-fi-light-effect-backdropView licenseAstronauts on Mars png illustration, transparent background. 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