A person feeding a treat to a small dog on a leash. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3288610/free-photo-image-dog-eating-leash-clothingFree Image from public domain licenseThe night sky helps explorers find their way. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3289661/free-photo-image-chihuahua-mexico-astronomy-brown-backgroundFree Image from public domain license