This image shows a layered deposit in Galle Crater, located in the Southern cratered highlands. Original from NASA.… https://www.rawpixel.com/image/440588/layered-deposit-galle-craterFree Image from public domain licenseEarth observations taken from Mir Space Station during NASA 7 mission. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440480/earth-observationFree Image from public domain license Frame from the only surviving hand-colored print of Georges Méliès's 1902 film Le voyage dans la lune (1902)… https://www.rawpixel.com/image/10184848/image-face-frame-handFree Image from public domain licenseThe interstellar exploration through the galaxy. Original from Official SpaceX Photos. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2229586/outer-space-explorationFree Image from public domain licenseThe Mackenzie River in the Northwest Territories, Canada. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/439973/map-green-terrain-canadaFree Image from public domain licenseA 3D graphic representation of a spherical-shaped, measles virus particle, that was studded with glycoprotein tubercles. https://www.rawpixel.com/image/2288308/free-photo-image-measles-virus-healthFree Image from public domain licenseA worker wearing a protective mask and suit. Original image sourced from US Government department: Public Health Image… https://www.rawpixel.com/image/2288458/free-photo-image-cleaning-clean-sprayFree Image from public domain licenseMountain ridges showing the distinctive geology of the Geikie Plateau region in eastern Greenland. Original from NASA.… https://www.rawpixel.com/image/440139/the-geikie-plateauFree Image from public domain licenseJupiter's south pole, as seen by NASA's Juno spacecraft from an altitude of 32,000 miles (52,000 kilometers). Original from… https://www.rawpixel.com/image/418650/jupiters-south-poleFree Image from public domain licenseMeteorology: a view of the Earth and the sun during summer [in the Northern hemisphere]. Coloured lithograph. https://www.rawpixel.com/image/13966405/image-paper-world-map-spaceFree Image from public domain licenseHeilongjiang, a province of China located in the northeastern part of the country. Original from NASA. Digitally enhanced by… https://www.rawpixel.com/image/440587/heilongjiang-province-space-viewFree Image from public domain licenseAstronomy: a diagram of the relative sizes of the planets. Coloured lithograph by Standidge & Co Litho. https://www.rawpixel.com/image/13952443/image-star-paper-cartoonFree Image from public domain licenseMERS Coronavirus Particle–Middle East Respiratory Syndrome Coronavirus particle envelope proteins immunolabeled with… https://www.rawpixel.com/image/2294161/free-photo-image-covid-virus-scienceFree Image from public domain licenseMERS Coronavirus Particles–Colorized transmission electron micrograph showing particles of the Middle East respiratory… https://www.rawpixel.com/image/2294178/free-photo-image-virus-covid-19-covidFree Image from public domain licenseOn July 20, the U.S. Coast Guard Cutter Healy steamed south in the Arctic Ocean toward the edge of the sea ice. Original… https://www.rawpixel.com/image/440132/icy-seaFree Image from public domain licenseHemelkaart met de sterrenbeelden (1780) by anonymous, Pieter le Clerc, Covens and Mortier and Covens Jr, Pieter le Clerc and… https://www.rawpixel.com/image/13739716/image-paper-cartoon-faceFree Image from public domain licenseAn electron microscopic (SEM) image, depicts a blue-colored, human white blood cell, (WBC) known specifically as a… https://www.rawpixel.com/image/2288485/free-photo-image-blood-cells-bacteriaFree Image from public domain licenseThe Soyuz TMA-09M spacecraft departs from the International Space Station Zvezda Service Module and heads toward a landing… https://www.rawpixel.com/image/418615/spacecraft-departsFree Image from public domain licenseThe interstellar exploration through the galaxy. Original from Official SpaceX Photos. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2229767/outer-space-explorationFree Image from public domain licenseFour test tubes of bacterial microorganism. Original image sourced from US Government department: Public Health Image… https://www.rawpixel.com/image/2288552/free-photo-image-laboratory-test-tube-science-labFree Image from public domain licenseBee Butts — This is the backend of a Lipotriches (Plain Sweat Bee) collected in Australia. Original public domain… https://www.rawpixel.com/image/4042528/photo-image-background-bee-yellowFree Image from public domain licenseScientist testing with virus through test tubes. Original image sourced from US Government department: Public Health Image… https://www.rawpixel.com/image/2282498/free-photo-image-science-laboratory-hospitalFree Image from public domain licenseChameleon on a branch. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3283136/free-photo-image-chameleon-colorful-animal-designFree Image from public domain licenseAmazing image of the United States of America at night. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/418612/the-united-states-america-nightFree Image from public domain licenseNovel Coronavirus SARS-CoV-2–Colorized scanning electron micrograph of an apoptotic cell (blue) infected with SARS-COV… https://www.rawpixel.com/image/2294134/free-photo-image-covid-virus-scienceFree Image from public domain licenseThe Channel Tunnel, a 50.5 km-long rail tunnel beneath the English Channel at the Straits of Dover. Original from NASA.… https://www.rawpixel.com/image/441134/channel-tunnel-space-viewFree Image from public domain licenseAcoustics: sonic phenomena and musical instruments. Coloured engraving by J. Emslie, 1850, after himself. https://www.rawpixel.com/image/13967297/image-paper-cartoon-personFree Image from public domain licenseA 3D graphical representation of a number of Rotavirus virions, set against a black background. https://www.rawpixel.com/image/2288315/free-photo-image-virus-public-domain-bacteriaFree Image from public domain licenseUSNS Mercy Sailors Conduct an Interventional Radiology Study and Procedure on a Patient https://www.rawpixel.com/image/3393972/free-photo-image-covid-hospital-patientFree Image from public domain licenseAir Force in Space (1995) illustrated by Tish Tompkins. Original public domain image from Wikimedia Commons. Digitally… https://www.rawpixel.com/image/10184890/image-astronaut-face-personFree Image from public domain licenseAstronomy: a diagram of the earth and other planets. Coloured engraving, 1846. https://www.rawpixel.com/image/13951300/astronomy-diagram-the-earth-and-other-planets-coloured-engraving-1846Free Image from public domain licenseHealthcare workers donning a pair of protective goggles and protective equipment. Original image sourced from US Government… https://www.rawpixel.com/image/2288386/free-photo-image-safety-pandemic-workerFree 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 licenseU.S. Ambassador in Antarctica 2010 - Day 3From U.S. Ambassador Huebner's Blog: https://www.rawpixel.com/image/8734125/photo-image-public-domain-bird-iceFree 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 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 licenseMechanics: various machines. Coloured engraving by J. Emslie, 1850, after himself. https://www.rawpixel.com/image/13961976/image-person-technology-public-domainFree 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 licenseBlack hole (2001) photo by XMM-Newton, ESA, NASA. Original public domain image from Wikimedia Commons. Digitally enhanced by… https://www.rawpixel.com/image/10184853/image-galaxy-person-spaceFree Image from public domain licenseCar of the Future (1950) chromolithograph by Arthur C. Bade. Original public domain image from Wikipedia. Digitally enhanced… https://www.rawpixel.com/image/10542592/image-face-person-plasticFree 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 licenseAstronomy: a star map of the night sky in the northern hemisphere, with the names of the constellations. Coloured engraving. https://www.rawpixel.com/image/13957631/image-stars-paper-frameFree 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 licenseA medical illustration of drug–resistant, Streptococcus pneumoniae bacteria. Original image sourced from US Government… https://www.rawpixel.com/image/2288648/free-photo-image-biology-science-laboratoryFree Image from public domain licenseMagnetism: electrical equipment and magnetic phenomena. Coloured engraving by J. Emslie, 1850. https://www.rawpixel.com/image/13965909/image-space-art-compassFree Image from public domain licenseGeography: two rotating discs (volvelles) showing the times at different places compared to London, and the constellations… https://www.rawpixel.com/image/13957564/image-paper-space-artFree Image from public domain licenseA cosmological plan detailing Copernicus' astronomical vision, surrounded by diagrams of the systems of Ptolemy and Tycho… https://www.rawpixel.com/image/13952684/image-horse-person-spaceFree Image from public domain licenseCellarius Ptolemaic System from Andreas Cellarius Harmonia Macrocosmica (1660) chromolithograph art by J. van Loon. Original… https://www.rawpixel.com/image/10184766/image-face-hand-personFree Image from public domain licenseAstronomy: an oval chart showing how different planets affect different parts of a man's body. Engraving by P. Miotte. https://www.rawpixel.com/image/13959672/image-background-cartoon-personFree Image from public domain licenseAstronaut Jeffrey N. Williams during EVA 5 on Expedition 13. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440829/astronaut-spaceFree Image from public domain licenseFull views of Mir Space Station after undocking during flyaround. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440660/space-stationFree Image from public domain licenseA photomicrograph of Candida albicans fungal spores. Original image sourced from US Government department: Public Health… https://www.rawpixel.com/image/2288324/free-photo-image-bacteria-cdc-microscopeFree Image from public domain licenseDebris plot photo by NASA. Original public domain image from Wikimedia Commons. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/10184875/image-galaxy-space-skyFree Image from public domain licenseAlone in Space - Astronomers Find New Kind of Planet (2011) photo by NASA/JPL-Caltech. Original public domain image from… https://www.rawpixel.com/image/10184856/image-galaxy-moon-spaceFree Image from public domain licenseAstronomy: a chart of the constellations Great Bear and Little Bear. Engraving. https://www.rawpixel.com/image/13966151/astronomy-chart-the-constellations-great-bear-and-little-bear-engravingFree Image from public domain licenseOdyssey over Martian Sunrise, 3-D Artist Concept. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/440507/odyssey-over-martian-sunriseFree Image from public domain licenseCuckoo wasp (Chrysididae, Chrysis sp.)USA, TX, Travis Co.: AustinHornsby Bend Bird ObservatoryRiver trail, mixed forestA.… https://www.rawpixel.com/image/8719928/photo-image-public-domain-animalFree Image from public domain licenseA herd of guanacos in Torres del Paine National Park in Chile. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/439985/herd-guanacosFree Image from public domain licenseOptics: interference phenomena, exhibited by diffraction gratings. Coloured mezzotint by M. Rapine [1883], after B. Desgoffe. https://www.rawpixel.com/image/13968649/image-background-pattern-circleFree Image from public domain licensePhotograph of MSC-8 color patch outside spacecraft during docking. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/441719/msc-8-color-patchFree Image from public domain licenseLife-line of the nation American railroads (1942), vintage poster by Adolph Treidler. Original public domain image from the… https://www.rawpixel.com/image/9414519/image-art-vintage-illustrationFree Image from public domain licenseAstrology: signs of the zodiac, Pegasus. Coloured engraving. https://www.rawpixel.com/image/13952161/astrology-signs-the-zodiac-pegasus-coloured-engravingFree Image from public domain licenseAn iceberg embedded in sea ice as seen from the IceBridge DC-8 over the Bellingshausen Sea on Oct. 19, 2012. Original from… https://www.rawpixel.com/image/440094/icebergFree Image from public domain licenseAstronomy: a star map of the night sky in the southern hemisphere, with names of the constellations. Coloured engraving. https://www.rawpixel.com/image/13953920/image-stars-person-spaceFree Image from public domain licenseMaricopa harvester ant (Formicidae: Pogonomyrmex maricopa)Public domain image by Brett Morgan, produced as part of the… https://www.rawpixel.com/image/8719976/photo-image-public-domain-animalFree Image from public domain licenseTree Study (Autumn Foliage) (1828) nature illustration by John Linnell. Original public domain image from Yale Center for… https://www.rawpixel.com/image/10103628/image-plant-art-watercolorsFree Image from public domain license(U.S. Army photo by Sgt. 1st Class Michel Sauret). Original public domain image from Flickr https://www.rawpixel.com/image/3577768/free-photo-image-people-latin-american-military-2015-tec-best-warriorFree Image from public domain licenseOptics: spectra of various substances. Colour aquatint by R.H. Digeon, ca. 1868. https://www.rawpixel.com/image/13960664/image-background-art-patternFree Image from public domain licenseFestive Tiger Beetle. (Cicindela scutellaris) - the Festive Tiger Beetle, found on top of a butte in Badlands National Park… https://www.rawpixel.com/image/4042526/photo-image-face-backgroundFree Image from public domain licenseNASA’s Operation IceBridge Completes Twin Polar Campaigns. Heimdal Glacier in southern Greenland. Original from NASA.… https://www.rawpixel.com/image/440099/heimdal-glacier-southern-greenlandFree Image from public domain licenseThe Gemini-12 spacecraft during standup extravehicular activity with the hatch open. Original from NASA. Digitally enhanced… https://www.rawpixel.com/image/418677/the-gemini-12-spacecraftFree Image from public domain licenseFree light bulb isolated image, public domain electricity CC0 photo. https://www.rawpixel.com/image/5923905/photo-image-white-background-light-public-domainFree Image from public domain licenseNASA educational material: Discovery & New Frontiers Space Thrills Poster. Discover Program Poster (2006) illustrated by… https://www.rawpixel.com/image/10184909/image-galaxy-person-spaceFree Image from public domain licenseGeography: three types of globe. Coloured engraving by J. Pass, 1807. https://www.rawpixel.com/image/13963558/geography-three-types-globe-coloured-engraving-pass-1807Free Image from public domain license