Guinea-Bissau, a small country in West Africa. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/418619/guinea-bissauFree Image from public domain licenseSnow-capped peaks and ridges of the eastern Himalaya Mountains. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/418606/the-eastern-himalaya-mountainsFree Image from public domain licenseThe Lena River, some 2,800 miles long, is one of the largest rivers in the world. Original from NASA. Digitally enhanced by… https://www.rawpixel.com/image/440230/free-photo-image-nasa-russia-earthFree Image from public domain licenseDecember 2, 2014NASA's Journey to Marshttp://mars.jpl.nasa.gov/msl/multimedia/images/?ImageID=6829NASA is developing the… https://www.rawpixel.com/image/9975908/photo-image-astronaut-moon-spaceFree Image from public domain licenseAkpatok Island in Ungava Bay in northern Quebec, Canada. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440234/free-photo-image-water-maps-iceFree Image from public domain licenseU.S. Ambassador in Antarctica 2010 - Day 3From U.S. Ambassador Huebner's Blog: https://www.rawpixel.com/image/8735585/photo-image-public-domain-mountain-personFree Image from public domain licenseU.S. Ambassador in Antarctica 2010 - Day 3From U.S. Ambassador Huebner's Blog: https://www.rawpixel.com/image/8735614/photo-image-public-domain-earth-iceFree Image from public domain licenseU.S. Embassy celebrates Earth Day with Room 8 at Thorndon School - 28 April, 2010 https://www.rawpixel.com/image/8735575/photo-image-public-domain-person-kidsFree Image from public domain licenseMissionary Plains in Australia’s Northern Territory, a crater 24 kilometers in diameter and 5 kilometers deep.… https://www.rawpixel.com/image/440278/free-photo-image-nasa-australia-landscapeFree Image from public domain licenseU.S. Embassy celebrates Earth Day with Room 8 at Thorndon School - 28 April, 2010 https://www.rawpixel.com/image/8735654/photo-image-face-public-domain-womanFree Image from public domain license