A 440X photomicrograph magnification of a hematoxylin and eosin (H&E)–stained liver tissue specimen, revealed the… https://www.rawpixel.com/image/2288342/free-photo-image-liver-biology-microscopeFree 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 licenseGroup A Streptococcus (GAS), Streptococcus pyogenes bacteria, which were atop the surface of a human white blood cell (WBC)… https://www.rawpixel.com/image/2288304/free-photo-image-blood-cells-white-cell-streptococcusFree Image from public domain licenseUltrastructural morphology shown by coronavirus. Original image sourced from US Government department: Public Health Image… https://www.rawpixel.com/image/2282536/free-photo-image-covid-science-virusFree Image from public domain licenseWilson Bentley's Snowflake 920 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798905/free-photo-image-snow-snowflake-winterFree Image from public domain licenseUltrastructural morphology exhibited by coronaviruses similar to COVID-19 which became pandemic. https://www.rawpixel.com/image/2282543/free-photo-image-covid-virus-coronavirusFree Image from public domain licenseA medical illustration of drug–resistant, Neisseria gonorrhoeae bacteria. Original image sourced from US Government… https://www.rawpixel.com/image/2288553/free-photo-image-bacteria-virus-biologyFree Image from public domain licenseWilson Bentley's Snowflake 562 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798883/free-photo-image-snowflake-snow-winterFree Image from public domain licenseNovel Coronavirus SARS-CoV-2–This scanning electron microscope image shows SARS-CoV-2 (yellow)—also known as… https://www.rawpixel.com/image/2294163/free-photo-image-virus-microbiology-scienceFree 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 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 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 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 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 licenseA lab technician checks a blood sample for malaria in Barawe, Somalia, on August 23, 2016. Original public domain image from… https://www.rawpixel.com/image/3372929/free-photo-image-laboratory-africa-baraweFree Image from public domain licenseMogadishu University students from the Faculty of Health in a laboratory session at the university in Somalia. AMISOM Photo… https://www.rawpixel.com/image/3373021/free-photo-image-science-lab-teenager-schoolFree Image from public domain licenseLaboratory Technologist Caren Cherotich (31 years) uses a microscope to examine samples at Ahero County Hospital, Kisumu… https://www.rawpixel.com/image/8759381/photo-image-public-domain-womanFree Image from public domain licenseOptics: a simple microscope. Coloured engraving by J. Pass, 1820. https://www.rawpixel.com/image/13969999/optics-simple-microscope-coloured-engraving-pass-1820Free Image from public domain licenseA person's hands using a microscope. Original public domain image from Flickr https://www.rawpixel.com/image/5803543/photo-image-public-domain-hand-personFree Image from public domain licenseTeeth such as these are examined under an electron microscope after special treatment https://www.rawpixel.com/image/8732310/photo-image-hands-person-manFree Image from public domain licenseColor added to a black and white image from an electron microscope Oak Ridge https://www.rawpixel.com/image/8733421/photo-image-public-domain-green-blackFree Image from public domain licenseWilson Bentley's Snowflake 1152 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798898/free-photo-image-snowflake-winter-snowFree Image from public domain licenseWhite coronavirus under a Microscope. Original image sourced from US Government department: Public Health Image Library… https://www.rawpixel.com/image/2282546/free-photo-image-cell-science-virusFree Image from public domain licenseWilson Bentley's Snowflake 234 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798923/free-photo-image-snowflake-crystal-vintageFree Image from public domain licenseTransmission electron microscopic (TEM) image highlights the particle envelope of a single, spherical shaped, Middle East… https://www.rawpixel.com/image/2288502/free-photo-image-bacteria-virus-scienceFree Image from public domain licenseMicroscopic mold. Original image sourced from US Government department: Public Health Image Library, Centers for Disease… https://www.rawpixel.com/image/2282521/free-photo-image-mold-bacteria-cdcFree Image from public domain licenseThe nucleus of an atom. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3292316/free-photo-image-eye-fire-circle-photography-red-abstractFree Image from public domain licenseGreen coronavirus under a microscope. Original image sourced from US Government department: Public Health Image Library… https://www.rawpixel.com/image/2282449/free-photo-image-virus-science-greenFree Image from public domain licenseA Petri dish culture plate, which had contained a growth medium of sheep blood agar (SBA), and which was inoculated with… https://www.rawpixel.com/image/2288447/free-photo-image-laboratory-bacteria-petri-dish-bloodFree Image from public domain licenseAt Fermilab, working on Cryogenic Application Specific Integration Circuit (ASICs) for Quantum. Original public domain image… https://www.rawpixel.com/image/3325563/free-photo-image-hijab-microscope-cc0Free Image from public domain licenseTrunk and roots of a pine tree cut to show growth rings; microscopic views of wood cells in longitudinal and transverse… https://www.rawpixel.com/image/13959020/image-plant-tree-crossFree Image from public domain licenseA medical illustration of drug–resistant, Mycoplasma genitalium bacteria. Original image sourced from US Government… https://www.rawpixel.com/image/2288643/free-photo-image-laboratory-microscope-scienceFree Image from public domain licenseA 3D illustration provides a graphical representation of a single norovirus virion, set against a beige background. https://www.rawpixel.com/image/2288351/free-photo-image-virus-laboratory-biologyFree Image from public domain licenseA Great Green Bush Cricket (Tettigorica viridissima Linneaeus), A Clioniona Spider, and a Beetle https://www.rawpixel.com/image/9085108/image-art-watercolors-vintageFree Image from public domain licenseMERS Coronavirus Particles–MERS-CoV particles on camel epithelial cells. Original image sourced from US Government… https://www.rawpixel.com/image/2294189/free-photo-image-science-microscope-backgroundFree Image from public domain licenseDon't Let Your Research Go Up in Smoke. Original public domain image from Flickr https://www.rawpixel.com/image/9647158/image-background-person-medicineFree Image from public domain licenseOptics: various microscopes. Coloured engraving by J. Pass, 1820. https://www.rawpixel.com/image/13960298/optics-various-microscopes-coloured-engraving-pass-1820Free Image from public domain licenseU.S. Navy Sailors visit Hospital Naval de Cartagena during Continuing Promise 2022CARTAGENA, Colombia (Nov. 15, 2022)… https://www.rawpixel.com/image/9648022/photo-image-person-woman-public-domainFree Image from public domain licenseMicroscope, African scientist. Credit: Brant Stewart, RTI. Original public domain image from Flickr https://www.rawpixel.com/image/8759370/photo-image-public-domain-scienceFree Image from public domain licenseCuirassier with Drawn Sword by Jean Louis Ernest Meissonier (Cast by) https://www.rawpixel.com/image/8963130/cuirassier-with-drawn-sword-jean-louis-ernest-meissonier-cast-byFree Image from public domain licenseWilson Bentley's Snowflake 332 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798916/free-photo-image-snowflake-winter-crystalFree Image from public domain licenseWilson Bentley's Snowflake 579A (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798875/free-photo-image-snowflake-snow-winterFree Image from public domain licenseWilson Bentley's Snowflake 990 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798890/free-photo-image-snowflake-snow-flakesFree Image from public domain licenseWilson Bentley's Snowflake 10 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798878/free-photo-image-crystal-snowflake-winterFree Image from public domain licenseWilson Bentley's Snowflake 342 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798877/free-photo-image-snowflake-snow-flakeFree Image from public domain licenseWilson Bentley's Snowflake 976 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798930/free-photo-image-winter-snowflake-snow-flakeFree Image from public domain licenseWilson Bentley's Snowflake 10 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798889/free-photo-image-snowflake-crystal-vintageFree Image from public domain licenseA medical illustration of clindamycin–resistant group B Streptococcus bacteria. Original image sourced from US… https://www.rawpixel.com/image/2288537/free-photo-image-bacteria-science-labFree Image from public domain licenseWilson Bentley's Snowflake 951 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798879/free-photo-image-snowflake-crystal-snowFree Image from public domain licenseWilson Bentley's Snowflake 10 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798891/free-photo-image-crystal-snowflake-vintageFree Image from public domain licenseWilson Bentley's Snowflake 482 (ca. 1890) detailed photograph of snowflakes in high resolution by Wilson Alwyn Bentley.… https://www.rawpixel.com/image/2798882/free-photo-image-snowflake-snow-crystalFree Image from public domain licenseA 3D image of a number of oblong–shaped, Vibrio parahaemolyticus bacteria Original image sourced from US Government… https://www.rawpixel.com/image/2288346/free-photo-image-bacteria-biology-scienceFree Image from public domain licenseA 3D computer–generated image of a cluster of barrel-shaped, Clostridium perfringens bacteria. https://www.rawpixel.com/image/2288362/free-photo-image-bacteria-public-domain-perfringensFree Image from public domain licenseA 1000X photomicrograph magnification of numerous, rod-shaped, Gram–negative, Yersinia pestis bacilli. https://www.rawpixel.com/image/2288448/free-photo-image-bacteria-laboratory-microscopeFree Image from public domain licenseThe eye, as seen through a microscope: two figures. Colour lithograph after R. Liebreich, ca. 1860. https://www.rawpixel.com/image/13953368/image-background-space-moonFree Image from public domain licenseNovel Coronavirus SARS-CoV-2–This scanning electron microscope image shows SARS-CoV-2—also known as 2019-nCoV… https://www.rawpixel.com/image/2294181/free-photo-image-microbiology-medical-electron-micrographFree Image from public domain licenseA medical illustration of drug–resistant, Neisseria gonorrhoeae bacteria. Original image sourced from US Government… https://www.rawpixel.com/image/2288651/free-photo-image-bacteria-science-biologyFree Image from public domain licenseA horrified old woman observing the monstrous contents of a drop of water through a microscope. Coloured transparency… https://www.rawpixel.com/image/13960667/image-cartoon-face-personFree Image from public domain licenseThe eye, as seen through a microscope: three figures. Colour lithograph after R. Liebreich, ca. 1860. https://www.rawpixel.com/image/13959160/image-frame-plant-artFree Image from public domain licenseMERS Coronavirus Particles–Colorized scanning electron micrograph of Middle East Respiratory Syndrome virus particles… https://www.rawpixel.com/image/2294229/free-photo-image-science-covid-medicalFree Image from public domain licenseMERS Coronavirus Particles–Color-enhanced scanning electron micrograph of Vero E6 cells infected with Middle East… https://www.rawpixel.com/image/2294198/free-photo-image-science-medical-blackFree Image from public domain licenseA petri dish culture plate contained a growth medium of sheep blood agar (SBA), which was inoculated with Bacillus anthracis… https://www.rawpixel.com/image/2288584/free-photo-image-blood-medical-organs-petri-dishFree Image from public domain licenseMERS Coronavirus Particles–Colorized scanning electron micrograph of MERS virus particles (yellow) both budding and… https://www.rawpixel.com/image/2294208/free-photo-image-microbiology-microscope-virusFree Image from public domain licenseThe eye, as seen through a microscope: three figures. Colour lithograph, ca. 1862. https://www.rawpixel.com/image/13956424/image-background-art-patternFree Image from public domain licenseMERS Coronavirus Particles–Colorized scanning electron micrograph of Marburg virus particles (blue) both budding and… https://www.rawpixel.com/image/2294216/free-photo-image-sick-covid-microbiologyFree Image from public domain licenseAstacus fluviatilis, removed from the Superior test, opened, so that the insides were exposed. https://www.rawpixel.com/image/9648575/image-medicine-book-abstractFree Image from public domain licenseGreen coronavirus under a microscope. Original image sourced from US Government department: Public Health Image Library… https://www.rawpixel.com/image/2282451/free-photo-image-immune-cell-parasite-green-backgroundFree Image from public domain licenseNovel Coronavirus SARS-CoV-2–This scanning electron microscope image shows SARS-CoV-2 (yellow)—also known as… https://www.rawpixel.com/image/2294176/free-photo-image-microscope-science-sars-covid19Free Image from public domain licenseLiving organisms under a microscopic view. Original image sourced from US Government department: Public Health Image… https://www.rawpixel.com/image/2282440/free-photo-image-science-immune-cell-hela-cellsFree Image from public domain licenseFlea isolated on white background. Original image sourced from US Government department: Public Health Image Library… https://www.rawpixel.com/image/2282522/free-photo-image-insect-flea-usaFree Image from public domain licenseMERS Coronavirus Particles–MERS-CoV particles on camel epithelial cells. Original image sourced from US Government… https://www.rawpixel.com/image/2294175/free-photo-image-medical-background-science-awarenessFree Image from public domain licenseOptics: a simple microscope. Coloured engraving by J. Pass, 1820. https://www.rawpixel.com/image/13954294/optics-simple-microscope-coloured-engraving-pass-1820Free Image from public domain license