Technician removing an archival bottle from the automated radioxenon sampler-analyzer. https://www.rawpixel.com/image/3325535/free-photo-image-architecture-apparel-buildingFree Image from public domain licenseBeyoncé performs during the State Dinner reception in honor of President Felipe Calderón of Mexico and his… https://www.rawpixel.com/image/4051201/image-light-public-domain-personFree Image from public domain licenseFirst Lady Michelle Obama speaks about the importance of healthy meals and exercise to Washington, D.C. students from… https://www.rawpixel.com/image/3237291/free-photo-image-students-chicken-agricultureFree Image from public domain licensePresident Barack Obama plays basketball at Fort McNair in Washington, D.C. on May 9, 2009. https://www.rawpixel.com/image/4051080/image-public-domain-sports-photoFree Image from public domain licenseChemical operator in plants 2 & 3, the ore refinery plants. Original public domain image from Flickr https://www.rawpixel.com/image/3325694/free-photo-image-refinery-brewery-aircraftFree Image from public domain licenseActing Secretary Wolf Participates in a Flag Raising CeremonyWashington D.C. (January 11, 2021) Acting Homeland Security… https://www.rawpixel.com/image/4046197/photo-image-logo-peopleFree Image from public domain licenseMolten salt thermal energy storage technology is an efficient, reliable, and cost-effective way to store solar power at… https://www.rawpixel.com/image/3322899/free-photo-image-animal-bird-buildingFree Image from public domain licenseSecretary Kerry Officiates the 132nd Civil Service Orientation Class Swearing-In Ceremony https://www.rawpixel.com/image/4045988/photo-image-face-public-domain-personFree Image from public domain licenseServicemen and women listen to President Barack Obama as he delivers remarks at Naval Air Station Jacksonville in… https://www.rawpixel.com/image/4051012/image-public-domain-person-photoFree Image from public domain licensePresident Barack Obama and First Lady Michelle Obama welcome President Hu Jintao of China at the North Portico of the White… https://www.rawpixel.com/image/4050316/photo-image-plant-person-fashionFree Image from public domain licensePresident Barack Obama listens during a technology strategy discussion in the Rose Garden of the White House, Oct. 8, 2014. https://www.rawpixel.com/image/4050864/image-face-public-domain-shirtFree Image from public domain licensePresident Barack Obama takes aim with a photographer's camera backstage prior to remarks about providing mortgage payment… https://www.rawpixel.com/image/4051007/image-public-domain-person-cameraFree Image from public domain licenseBuffalo graze southwest of Lima, near Little Sheep Creek, Dillon Ranger District of Beaverhead-Deerlodge National Forest… https://www.rawpixel.com/image/3259522/free-photo-image-bison-animal-buffaloFree Image from public domain licensePresident Barack Obama greets House and Senate Pages as he departs the House Chamber after delivering the State of the Union… https://www.rawpixel.com/image/4049875/photo-image-people-kid-womanFree Image from public domain licenseOfficial portrait of the U.S. Secretary of the Treasury Jack LewOfficial portrait of the U.S. Secretary of the Treasury Jack… https://www.rawpixel.com/image/4046271/photo-image-person-glassesFree Image from public domain licenseThe lights of the 2012 U.S. Capitol Christmas Tree from the Blanco Ranger District of the White River National Forest near… https://www.rawpixel.com/image/3260214/free-photo-image-abies-architecture-buildingFree Image from public domain licenseNIF’s amplifier cooling system above cluster 3 with cluster 4 infrastructure in foreground. https://www.rawpixel.com/image/3322437/free-photo-image-amplifier-cc0-cooling-systemFree Image from public domain licensePresident Barack Obama signs a photograph as he greets people on the tarmac upon arrival at Louis Armstrong International… https://www.rawpixel.com/image/4050756/image-public-domain-people-cameraFree Image from public domain licenseMajor League Soccer champion Colorado Rapids team members hold a soccer clinic with children of military families on the… https://www.rawpixel.com/image/4050459/photo-image-people-teamFree Image from public domain licensePresident Barack Obama receives a national security briefing from John Brennan, Assistant to the President for Homeland… https://www.rawpixel.com/image/4050890/image-public-domain-person-manFree Image from public domain licenseThe National Christmas Tree is illuminated on the Ellipse in Washington D.C., Dec. 9, 2010. https://www.rawpixel.com/image/4051523/photo-image-tree-plant-ornamentFree Image from public domain licensePresident Barack Obama stands in a shaft of light while playing football outside the Oval Office May 20, 2009. https://www.rawpixel.com/image/4051272/image-public-domain-photo-usaFree Image from public domain licensePresident Barack Obama watches archers on horseback demonstrate their skills at the Meiji Shrine in Tokyo, Japan, April 24… https://www.rawpixel.com/image/4050023/photo-image-person-horseFree Image from public domain licenseFirst Lady Jill Biden packs canned goods into bags for children in the Buddy Backpack program Friday, Feb. 26, 2021, at the… https://www.rawpixel.com/image/4046044/photo-image-public-domain-person-foodFree Image from public domain licensePresident Barack Obama talks on the phone with British Prime Minister David Cameron in the Oval Office, Feb. 24, 2011. https://www.rawpixel.com/image/4051026/image-public-domain-person-officeFree Image from public domain licenseBo, the Obama family dog, plays in the snow in the Rose Garden of the White House, Jan. 24, 2013. https://www.rawpixel.com/image/4051573/photo-image-tree-plant-personFree Image from public domain licenseRail Shipments, Shandon Trestle – In support of the Waste Pits Remedial Action Project WPRAP), the train trestle near… https://www.rawpixel.com/image/3322925/free-photo-image-arbour-arch-archedFree Image from public domain licenseNewly discovered superconductor state opens a window to the evolution of the universe. https://www.rawpixel.com/image/3322341/free-photo-image-science-research-experiment-technology-labFree Image from public domain licenseAtomic bomb damage Hiroshima, Japan seen by the USS Appalachian November 27, 1945. Original public domain image from Flickr https://www.rawpixel.com/image/3325601/free-photo-image-bomb-collapse-atomicFree Image from public domain licenseBoeing Plant in Renton, 5/18/2010Secretary Geithner toured a Boeing 737 plant in Renton, WA on May 18, 2010. Original public… https://www.rawpixel.com/image/4046108/photo-image-public-domain-personFree Image from public domain licenseA White House nurse prepares to administer the H1N1 vaccine to President Barack Obama at the White House on Sunday, Dec. 20… https://www.rawpixel.com/image/4051057/image-public-domain-person-photoFree Image from public domain license110227-N-2515C-315 (Feb. 27, 2011) PACIFIC OCEAN – The Canadian navy auxiliary oiler replenishment HMCS Protecteur (AOR 509)… https://www.rawpixel.com/image/3318703/free-photo-image-battleship-boat-cc0Free Image from public domain licenseConstruction Continues on Border Wall Near McAllen, TX. Original public domain image from Flickr https://www.rawpixel.com/image/4051587/photo-image-person-public-domainFree Image from public domain licenseVice President Kamala Harris participates in an interview on the NBC Today Show with anchor Savannah Guthrie Wednesday, Feb.… https://www.rawpixel.com/image/4051456/photo-image-hand-personFree Image from public domain licenseGraduates toss their hats into the air at the end of the United States Naval Academy graduation ceremony May 22, 2009. https://www.rawpixel.com/image/4048867/photo-image-public-domain-graduationFree Image from public domain licensePresident Barack Obama shakes hands a departing White House Military Officer during a departure ceremony in the Oval Office… https://www.rawpixel.com/image/4050127/photo-image-person-public-domainFree Image from public domain licenseSecretary of State Michael R. Pompeo meets with Italian Foreign Minister Luigi Di Maio, in Rome, Italy on September 30… https://www.rawpixel.com/image/4043199/photo-image-city-building-carFree Image from public domain licensePresident Barack Obama leans on a football while making a phone call in the Oval Office on June 24, 2009. https://www.rawpixel.com/image/4051038/image-public-domain-hand-sportsFree Image from public domain licenseWind farm in Kansas during sunrise. Original public domain image from Flickr https://www.rawpixel.com/image/3322685/free-photo-image-barn-building-cc0Free Image from public domain licenseFramed through two flags, President Barack Obama takes questions during a press conference at the G20 Summit in Toronto… https://www.rawpixel.com/image/4051194/image-light-public-domain-photoFree Image from public domain licenseFirst Lady Michelle Obama reacts while talking on the phone to children across the country as part of the annual NORAD… https://www.rawpixel.com/image/4050892/image-face-phone-public-domainFree Image from public domain licensePresident Barack Obama walks from the Oval Office to deliver a statement on the situation in Ukraine, on the South Lawn of… https://www.rawpixel.com/image/4051162/image-public-domain-person-grassFree Image from public domain licenseU.S. troops capture photos of President Barack Obama as he greets them following his remarks at Bagram Airfield… https://www.rawpixel.com/image/4050027/photo-image-person-public-domainFree Image from public domain licenseHigh temperature plasma reactor. Original public domain image from Flickr https://www.rawpixel.com/image/3322910/free-photo-image-alcohol-apparel-bar-counterFree Image from public domain licensePresident Barack Obama runs down the East Colonnade with family dog, Bo, on the dog's initial visit to the White House… https://www.rawpixel.com/image/4051238/image-public-domain-person-dogFree Image from public domain licenseMarine guides his horseNokesville, Va. - Marines from Wounded Warrior Battalion West participated in a three-day clinic… https://www.rawpixel.com/image/3582573/free-photo-image-animal-apparel-asphaltFree Image from public domain licenseChurch of the Holy Sepulchre in Jerusalem. U.S. Secretary of State Michael R. Pompeo tours the Church of the Holy Sepulchre… https://www.rawpixel.com/image/4043548/photo-image-person-buildingFree Image from public domain licensePresident Barack Obama reads briefing material while meeting with advisors inside his cabin at Camp David, Sunday, Oct. 21… https://www.rawpixel.com/image/4050749/image-public-domain-person-photoFree Image from public domain licensePresident Barack Obama is reflected in a window while touring the Forbidden City in Beijing, China, Nov. 17, 2009. https://www.rawpixel.com/image/4049946/photo-image-face-person-windowFree Image from public domain licenseFireball of the May 21, 1956 test detonation over Bikini Atoll. Original public domain image from Flickr https://www.rawpixel.com/image/3322859/free-photo-image-art-astronomy-cc0Free Image from public domain licenseBrubaker Farms is both a diary and green energy producer in Mount Joy, PA on March 19, 2011. https://www.rawpixel.com/image/3306471/free-photo-image-biodigester-cattle-cowsFree Image from public domain licenseNational Magnetic Fusion Energy Computer Center (NERSC) hopper supercomputer cluster at the Oakland Scientific Facility… https://www.rawpixel.com/image/3325527/free-photo-image-supercomputer-hopper-berkeleyFree Image from public domain licenseCross section of prolifically coated uranium dis carbide fuel particles after irradiation. Original public domain image from… https://www.rawpixel.com/image/3322663/free-photo-image-alphabet-cc0-confectioneryFree Image from public domain license"The light was streaming through the windows behind his Oval Office desk as the President talked with Iraqi Prime Minister… https://www.rawpixel.com/image/4051196/image-public-domain-photo-usaFree Image from public domain licensePresident Barack Obama and First Lady Michelle Obama visit Poets' Corner during their tour of Westminster Abbey in London… https://www.rawpixel.com/image/4050886/image-public-domain-art-peopleFree Image from public domain licenseSecretary Pompeo Meets With Colombian President DuqueSecretary of State Michael R. Pompeo meets with Colombian President… https://www.rawpixel.com/image/4046345/photo-image-people-public-domainFree Image from public domain licenseDefense Secretary Robert M. Gates visits the Sheikh Zayed Bin Sultan Al Nahyan Mosque in Abu Dhabi, United Arab Emirates… https://www.rawpixel.com/image/3319482/free-photo-image-mosque-abu-dhabi-accessoryFree Image from public domain licenseSecretary Pompeo Meets With Members of the VFW and VFW Auxiliary Kansas Delegation https://www.rawpixel.com/image/4046138/photo-image-logo-person-kidFree Image from public domain licenseFirst Lady Michelle Obama, daughters Sasha and Malia, and Marian Robinson feed apples to giant pandas during their visit to… https://www.rawpixel.com/image/4050159/photo-image-person-buildingFree Image from public domain licensePresident Barack Obama conducts an interview with a news magazine onboard Air Force One en route to giving the commencement… https://www.rawpixel.com/image/4051273/image-face-public-domain-personFree Image from public domain licenseSmall fish like this are analyzed by Argonne scientists to determine the amounts of metallic elements they contain, c. 1970.… https://www.rawpixel.com/image/3322581/free-photo-image-aec-animal-cc0Free Image from public domain licenseSpikey geometric architecture structure. Original public domain image from Flickr https://www.rawpixel.com/image/4043864/original-public-domain-image-from-flickrFree Image from public domain licensePresident Barack Obama plays with family dog "Bo" April 20, 2009, on the South Lawn at the White House. https://www.rawpixel.com/image/4050287/photo-image-people-dog-carFree Image from public domain licensePresident Barack Obama and Israeli Prime Minister Benjamin Netanyahu look out a window before their lunch at the King David… https://www.rawpixel.com/image/4050780/image-public-domain-person-photoFree Image from public domain licenseSecretary Blinken Tours the Hellisheidi Geothermal Plant. Secretary of State Antony J. Blinken tours the Hellisheidi… https://www.rawpixel.com/image/4043663/photo-image-nature-city-buildingFree Image from public domain licenseTurtle on the beach, Mobile, Alabama Credit: Mark Ford, NPS. Original public domain image from Flickr https://www.rawpixel.com/image/4043079/photo-image-animal-public-domainFree Image from public domain licensePresident Barack Obama takes a tour of solar panels with Col. Ronald E. Jolly, Commander, at Hill Air Force Base, Utah… https://www.rawpixel.com/image/4050131/photo-image-person-public-domainFree Image from public domain licenseCapt. Tim Gerne, 100th Air Refueling Wing Detachment pilot deployed to a forward operating location, flies a KC-135… https://www.rawpixel.com/image/3318066/free-photo-image-aircraft-airplane-cc0Free Image from public domain licenseA view of the South Lawn is seen at sunset from the Blue Room of the White House, Jan. 18, 2012. https://www.rawpixel.com/image/4048870/photo-image-light-public-domain-buildingFree Image from public domain licenseInterior view of an inflatable building erected at the rwmc,part of the Stored Waste Examination Pilot Plant (SWEPP). https://www.rawpixel.com/image/3322754/free-photo-image-arch-arched-architectureFree Image from public domain licensePresident Barack Obama talks with California Gov. Arnold Schwarzenegger before an event at Solyndra, Inc., in Fremont… https://www.rawpixel.com/image/4051203/image-public-domain-person-photoFree Image from public domain licensePresident Barack Obama makes a phone call to Congressional leaders from the Outer Oval Office, June 23, 2010. https://www.rawpixel.com/image/4049985/photo-image-face-personFree Image from public domain licenseOfficial portrait of First Lady Michelle Obama in the Green Room of the White House, Feb. 12, 2013. https://www.rawpixel.com/image/4050801/image-public-domain-person-womanFree Image from public domain licenseArtist's conception of SNAP 10A system in space showing details of the compact nuclear reactor. Original public domain image… https://www.rawpixel.com/image/3322792/free-photo-image-aec-aircraft-astronomyFree Image from public domain licenseSecretary Blinken Tours St. Michael’s Monastery with Metropolitan Epiphaniy. https://www.rawpixel.com/image/4043659/photo-image-building-public-domainFree Image from public domain licenseAs the sun sets, perfect stacks of frameless glass solar modules await their robotic installers. The modules were pre… https://www.rawpixel.com/image/3322671/free-photo-image-banister-car-wheel-cargoFree Image from public domain licensePresident Barack Obama shoots clay targets on the range at Camp David, Md., Saturday, Aug. 4, 2012. https://www.rawpixel.com/image/4050762/image-public-domain-person-photoFree Image from public domain licenseHousing and Urban Development Secretary Julián Castro, Secretary of State John Kerry, Treasury Secretary Jack Lew and… https://www.rawpixel.com/image/4049888/photo-image-people-fashionFree Image from public domain licenseA U.S. Research Station Seen by Secretary Kerry as he Conducted a Helicopter Tour of U.S. Research Facilities Around Ross… https://www.rawpixel.com/image/4043641/photo-image-person-public-domainFree Image from public domain licenseFarmer Sara Constantineau grows, harvests and packages three different varieties of basil in a container at SquareRoots… https://www.rawpixel.com/image/3259443/free-photo-image-vegetable-herbs-agriculturalFree Image from public domain licensePresident Barack Obama talks with German Chancellor Angela Merkel and British Prime Minister David Cameron before the start… https://www.rawpixel.com/image/4051191/image-public-domain-person-photoFree Image from public domain licenseA U.S. Navy MH-60S Seahawk helicopter assigned to Helicopter Sea Combat Squadron (HSC) 12 prepares to land aboard the guided… https://www.rawpixel.com/image/3318934/free-photo-image-aircraft-airfield-airplaneFree Image from public domain licenseUpper great plains contracted with a company to use new lifting technology on 37 towers in summer and fail to ensure… https://www.rawpixel.com/image/3325617/free-photo-image-cable-cc0-creative-commonsFree Image from public domain licenseMagnolia tree blooms are seen Friday, March 26, 2021, in the Rose Garden of the White House. (Official White House Photo by… https://www.rawpixel.com/image/4051638/photo-image-flower-plant-cherry-blossomFree Image from public domain licenseSecretary Pompeo Visits Qasr al-YahudSecretary of State Michael R. Pompeo visits Qasr al-Yahud, in Jordan Valley on November… https://www.rawpixel.com/image/4043191/photo-image-tree-plant-buildingFree Image from public domain licenseSecretary Pompeo Attends the 120th Army-Navy GameSecretary of State Michael R. Pompeo attends the 120th Army-Navy Game in… https://www.rawpixel.com/image/4046514/photo-image-people-public-domainFree Image from public domain license