An Aztec heritage dancer wears traditional regalia for a performance during the annual Latino Heritage Festival in Des… https://www.rawpixel.com/image/3388424/free-photo-image-aztec-women-public-domainFree Image from public domain licenseLightning, Wildfire, and Rainbows all came together in the Jacks Valley, Jacks Fire-Humboldt-Toiyabe National Forest in… https://www.rawpixel.com/image/4035072/photo-image-light-rainbow-fireFree Image from public domain licenseGK Persei or Nova Persei 1901 discovered 21 February by Scottish clergyman Thomas David Anderson. It was a bright nova… https://www.rawpixel.com/image/440096/bright-novaFree Image from public domain licenseHikers at Cutbank Pass Panorama. Original public domain image from Flickr https://www.rawpixel.com/image/3312494/free-photo-image-hiking-landscape-travelling-destinationFree Image from public domain licenseParatroopers assigned to Alpha Battery, 2nd Battalion, 377th Parachute Field Artillery Regiment, 4th Infantry Brigade Combat… https://www.rawpixel.com/image/4032015/photo-image-people-manFree Image from public domain licenseThe moon framed by the saddle of Electric Peak, USA. Original public domain image from Flickr https://www.rawpixel.com/image/4032581/photo-image-background-moon-treeFree Image from public domain licenseU.S. Department of Agriculture (USDA) Forest Service (USFS) Kaibab National Forest fire personnel Brandon Oberhardt, Quentin… https://www.rawpixel.com/image/3259603/free-photo-image-burning-forest-smoke-tree-plantFree Image from public domain licenseLivestock at Doug Jernigan Farms, a three-generation family farm and employer who, a few months earlier, refinanced a first… https://www.rawpixel.com/image/3259475/free-photo-image-cow-farm-animalFree Image from public domain licenseMan wearing a helmet in the forest for forest management. Original public domain image from Flickr https://www.rawpixel.com/image/3388201/free-photo-image-portrait-man-beard-americaFree Image from public domain licenseA doctor placing a bandage on the injection site of a patient. Original image sourced from US Government department: Public… https://www.rawpixel.com/image/2288497/free-photo-image-vaccine-doctor-patientFree Image from public domain licensePlane. Photo Courtesy of Royal Norwegian Navy. Original public domain image from Flickr. https://www.rawpixel.com/image/3393610/free-photo-image-airplane-aircraft-airlinerFree Image from public domain licenseA basketball enters a net during the 2015 Martin Luther King Jr. Memorial Basketball Tournament at Kleber Kaserne, Germany… https://www.rawpixel.com/image/3388510/free-photo-image-american-flag-basketball-americaFree Image from public domain licenseWoman opening windows to ventilate the room. Original image sourced from US Government department: Public Health Image… https://www.rawpixel.com/image/2282409/free-photo-image-window-home-airFree Image from public domain licenseP-33 (female). Interestingly, P-33 came to the kill site first, alone. She fed by herself for about an hour before her mom… https://www.rawpixel.com/image/3394440/free-photo-image-wild-animals-animal-carnivoresFree Image from public domain licenseUnder Old Glory. Marines gather under the American Flag during a change of command ceremony aboard Marine Corps Air Station… https://www.rawpixel.com/image/3578981/free-photo-image-4th-july-air-station-americaFree Image from public domain licenseKate Danner, Aledo, Illinois, raises corn and soybeans with her father John Longley, now living with her husband in the… https://www.rawpixel.com/image/3259440/free-photo-image-house-american-american-homeFree Image from public domain licenseAt SLAC National Accelerator Laboratory, an illustration depicts the repulsive energy (yellow flashes) generated by… https://www.rawpixel.com/image/3322314/free-photo-image-machine-science-proton-universeFree Image from public domain licenseTest Tubes from experimenting on coronavirus. Original image sourced from US Government department: Public Health Image… https://www.rawpixel.com/image/2282507/free-photo-image-science-vaccine-laboratoryFree Image from public domain licenseThomas and Anita Roberson (both U.S. Army Vets) operate the Roberson Farm Tour in Fredericksburg, Virginia. The Robersons… https://www.rawpixel.com/image/3259441/free-photo-image-honey-honeycomb-bee-hiveFree Image from public domain licenseTwo container ships docked at the Wando Welch Terminal (WWT) in Mount Pleasant, South Carolina, on November 19, 2020. https://www.rawpixel.com/image/3259384/free-photo-image-ship-ocean-riverFree Image from public domain licenseFilamentous bacteria at Mammoth Hot Springs. Original public domain image from Flickr https://www.rawpixel.com/image/4039404/photo-image-background-texture-abstractFree Image from public domain licenseMarine Corps Team’s Ronnie Jimenez awaits the start of bicycle racing for the 2015 Department of Defense Warrior Games… https://www.rawpixel.com/image/3388455/free-photo-image-sports-bike-crash-2015-department-defense-warrior-gamesFree Image from public domain licenseU.S. Department of Agriculture Market Reporter Heath Dewey takes a closer look at a wheat field outside of Eaton, Colorado… https://www.rawpixel.com/image/3259419/free-photo-image-wheat-nature-agricultureFree Image from public domain licenseFriends face coverings walking in nature, Oregon. Original public domain image from Flickr https://www.rawpixel.com/image/3388169/free-photo-image-walking-wearing-mask-covidFree Image from public domain licenseLattice Quantum Chromodynamics (LQCD) cluster at Fermilab’s Grid Computing Center. Original public domain image from… https://www.rawpixel.com/image/3322317/free-photo-image-server-technology-computer-networkFree Image from public domain licenseAerial views of the damage caused by Hurricane Sandy to the New Jersey coast. Original public domain image from Flickr https://www.rawpixel.com/image/4032001/photo-image-house-water-landscapeFree Image from public domain licenseSnowshoeing winter Hurrican ridge people. Original public domain image from Flickr https://www.rawpixel.com/image/4033042/photo-image-tree-people-natureFree Image from public domain licenseA team of surgeons, anesthetists and nurses perform cleft lip and palate surgery on a patient at the c, on August 30, 2018.… https://www.rawpixel.com/image/3372990/free-photo-image-doctor-operation-general-surgeryFree Image from public domain licenseMan climbing alone on a snowy mountain, Tongass National Forest. Original public domain image from Flickr https://www.rawpixel.com/image/3388187/free-photo-image-extreme-sports-man-sunglassesFree Image from public domain licenseU.S. Department of Agriculture (USDA) Shell Egg Graders perform sanitation pre-op inspections to ensure the shell egg… https://www.rawpixel.com/image/3307064/free-photo-image-manufacturing-factory-warehouseFree Image from public domain licenseUltrastructural morphology shown by coronavirus. Original image sourced from US Government department: Public Health Image… https://www.rawpixel.com/image/2282549/free-photo-image-virus-covid-scienceFree Image from public domain licenseSeeds are secured in plant pillows for the Veggie plant growth system inside a laboratory in the Space Station Processing… https://www.rawpixel.com/image/440388/biochemist-workingFree Image from public domain licenseU.S. Secretary of Agriculture Sonny Perdue tour of Keeneland Race Track included views of horse race activities and… https://www.rawpixel.com/image/3306782/free-photo-image-polo-race-sportsFree Image from public domain licenseMigrants illegally enter the U.S. by crossing the Rio Grande in rubber boats near Los Ebanos, Texas, June 15, 2019. https://www.rawpixel.com/image/8738711/photo-image-public-domain-people-childrenFree Image from public domain licenseDouble tree and sun shining through the morning fog. Original public domain image from Flickr https://www.rawpixel.com/image/4032622/photo-image-background-tree-natureFree Image from public domain licenseThe hydroculturely-grown butterhead lettuce grown in the Sirmon Farms greenhouse, which regulates the oxygen and nutrients… https://www.rawpixel.com/image/3259547/free-photo-image-agriculture-healthy-greenhouseFree Image from public domain licenseSmoke colors the sunrise over the Beartooth Plateau. Original public domain image from Flickr https://www.rawpixel.com/image/4039446/photo-image-background-light-treeFree Image from public domain licenseNMCSD NBHC Kearny Mesa COVID-19 Vaccine Trial 201217-N-DA693-1017 SAN DIEGO (Dec. 17, 2020) May Oliva, a clinical nurse… https://www.rawpixel.com/image/3393860/free-photo-image-covid-test-medicineFree Image from public domain licenseA couple enjoys the view and the recreation available at the campgrounds at Wade Lake in the Beaverhead-Deerlodge National… https://www.rawpixel.com/image/3306145/free-photo-image-camping-summer-holidays-mountainFree Image from public domain licenseJoe Purcell, owner of the Purcell Ranch near Lolo, Mont., raises hogs and uses the manure byproduct to augment his soil… https://www.rawpixel.com/image/3335023/free-photo-image-pig-animal-boarFree Image from public domain licenseFoam textured wall background. Original public domain image from Flickr https://www.rawpixel.com/image/4042545/photo-image-background-texture-abstractFree Image from public domain licenseFemale elk in snow, Mammoth Hot Springs. Original public domain image from Flickr https://www.rawpixel.com/image/4039510/photo-image-background-woods-forestFree Image from public domain licenseCyclists in Glacier National Park. A quick break along the Going-to-the-Sun Road. Original public domain image from Flickr https://www.rawpixel.com/image/4036954/photo-image-tree-people-natureFree Image from public domain licenseNASA/DLR Stratospheric Observatory for Infared Astronomy (SOFIA) 747SP cruises over central Texas on its first checkout… https://www.rawpixel.com/image/440724/commercial-airplaneFree Image from public domain licenseAt Los Alamos National Laboratory, UV light shines through a sample of transparent material containing quantum dots, tiny… https://www.rawpixel.com/image/3322322/free-photo-image-laser-power-basicFree Image from public domain licenseMan in aluminized suit. Original public domain image from Flickr https://www.rawpixel.com/image/3578733/free-photo-image-aluminium-fire-fighting-suit-careerFree Image from public domain licenseA nurse stands in Banadir Hospital on World Aids Day in Mogadishu, Somalia, on 1 December 2014. To mark the day, Banadir… https://www.rawpixel.com/image/3373024/free-photo-image-hijab-religion-africaFree Image from public domain licenseThomas Fire, Ventura, CA, Los Padres NF, 2017. Original public domain image from Flickr https://www.rawpixel.com/image/3388335/free-photo-image-fire-firefighter-firemanFree Image from public domain licenseService members from several units at Bagram Air Field, Afghanistan, pay their respects during a fallen comrade ceremony… https://www.rawpixel.com/image/3317809/free-photo-image-soldier-bagram-commonsFree Image from public domain licenseThe stunning and unspoiled Ofu beach and lagoon on the island of Ofu in the Manu'a Islands, National Park of American Samoa.… https://www.rawpixel.com/image/4224997/photo-image-background-public-domain-treeFree Image from public domain licenseNative American farmer and retired teacher Jerri Parker grew up on in agriculture, but now she operates her diversified farm… https://www.rawpixel.com/image/3259555/free-photo-image-agriculture-running-farmFree Image from public domain licenseSalmon attempting to jump waterfall. Original public domain image from Flickr https://www.rawpixel.com/image/4031136/photo-image-background-food-waterFree Image from public domain licenseAbineau Trail No. 127Fall color September 25, 2016 along Abineau Trail https://www.rawpixel.com/image/3394095/free-photo-image-tree-spring-autumn-forestFree Image from public domain licenseNearly cloud-free view of Great Britain and Ireland was acquired by the Moderate Resolution Imaging Spectroradiometer aboard… https://www.rawpixel.com/image/440141/great-britain-space-viewFree Image from public domain licenseFreezing rain covers flowers, plants and trees in Falls Church, VA on Monday, Dec. 9, 2013. USDA Photo by Lance Cheung.… https://www.rawpixel.com/image/3259476/free-photo-image-pink-flower-iceFree Image from public domain licenseU.S. Department of Agriculture (USDA) Secretary Sonny Perdue and American Farm Bureau Federation President Zippy Duvall… https://www.rawpixel.com/image/3306830/free-photo-image-agriculture-machine-farmFree Image from public domain licenseA UN helicopter carrying Prime Minister Abdiweli and his delegation depart from Tiyeglow following a visit to the recently… https://www.rawpixel.com/image/3372889/free-photo-image-refugee-army-helicopter-africaFree Image from public domain licenseTwo dolphins surfacing, light reflecting sea. Original public domain image from Flickr https://www.rawpixel.com/image/5803723/photo-image-background-public-domain-oceanFree Image from public domain licenseA flight attendant poses for a photograph inside Kenya's national carrier, Kenya Airways at Adan Adde International Airport… https://www.rawpixel.com/image/3373137/free-photo-image-stewardess-career-woman-flight-attendantFree Image from public domain licenseU.S. Capitol, Washington D.C. Photograph taken from the Thomas Jefferson Building. Original image from Carol M.… https://www.rawpixel.com/image/421847/us-capitol-building-washington-dcFree Image from public domain licenseAstronaut Edwin E Aldrin Jr, Lunar Module (LM) pilot descends from the LM, climbing down the ladder. Original from NASA.… https://www.rawpixel.com/image/418665/astronaut-edwin-aldrin-jrFree Image from public domain licenseWapiti lake pack on a bison kill. Original public domain image from Flickr https://www.rawpixel.com/image/4032537/photo-image-background-woods-forestFree Image from public domain licenseKENNEDY SPACE CENTER, FLA. - Smoke and steam billow across Launch Complex 39B as the launch of Space Shuttle Discovery on… https://www.rawpixel.com/image/440856/rocket-launchFree Image from public domain licenseA Somali boy jumps between to old fishing boats above Mogadishu's fishing harbour near the fish market in the Somali… https://www.rawpixel.com/image/3373157/free-photo-image-somali-building-africaFree Image from public domain licenseEid-Ul-Fitr prayers at the Arbaca Rukun mosque in the old district of Hamarweyne in Mogadishu. Original public domain image… https://www.rawpixel.com/image/3372712/free-photo-image-festival-masjid-mosqueFree Image from public domain licenseJason Brewer, farmer near Forsyth, Mont., grows peas in a corn-peas-malt barley rotation, followed by a cover crop. June… https://www.rawpixel.com/image/3335038/free-photo-image-farm-agriculture-cropsFree Image from public domain licenseSome of the 17,000 poultry at Seldom Rest Farms located, north of Myerstown, PA, on Wednesday, April 20, 2011. https://www.rawpixel.com/image/3259614/free-photo-image-farm-chicken-whiteFree Image from public domain licenseUnderwater beauty at Raja Ampat, Indonesia. Original public domain image from Flickr https://www.rawpixel.com/image/4031085/photo-image-background-ocean-plantFree Image from public domain license