911: Ground Zero, 09/14/2001. Original public domain image from Flickr https://www.rawpixel.com/image/8799891/photo-image-public-domain-person-natureFree Image from public domain licenseSatellite image of Earth. Original from NASA. Digitally enhanced by rawpixel. | free image by rawpixel.com https://www.rawpixel.com/image/412392/free-photo-image-earth-environment-mapFree Image from public domain license911: Ground Zero, 10/03/2001. Original public domain image from Flickr https://www.rawpixel.com/image/8799697/photo-image-public-domain-person-natureFree Image from public domain licenseUSACE emergency operations teammate looks over the rubble at Ground Zero after the 9/11 attacks https://www.rawpixel.com/image/4036544/photo-image-logo-person-natureFree Image from public domain licenseLighthouse Zero, Hamburg. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3305073/free-photo-image-lighthouse-sky-architectureFree Image from public domain licenseGoServ Global and Sukup Manufacturing Co. bring the Sukup Safe T Home® to the Farm Progress Show in Boone, IA, on August 31… https://www.rawpixel.com/image/9653470/photo-image-face-hand-fireFree Image from public domain licenseAfghan National Army (ANA) commandos with the 3rd Company, 7th Special Operations Kandak fire at targets to check the… https://www.rawpixel.com/image/3319070/free-photo-image-scuba-afg-afghanistanFree Image from public domain licenseManhattan Beach Coast Guard training station. On the boardwalk at Manhattan Beach, Company 24, an all African American unit… https://www.rawpixel.com/image/12307627/image-person-sky-beachFree Image from public domain licenseMorton County, North Dakota. Getting the morning mail at eighteen below zero. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286041/photo-image-person-horse-skyFree Image from public domain license