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This is a searchable collection of scientific photos, illustrations, and videos. The images and videos in this gallery are licensed under Creative Commons Attribution Non-Commercial ShareAlike 3.0. This license lets you remix, tweak, and build upon this work non-commercially, as long as you credit and license your new creations under identical terms.

Cell Nucleus and Lipid Droplets

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A cell nucleus (blue) surrounded by lipid droplets (yellow). James Olzmann, University of California, Berkeley View Media

Bacteriophage P22 capsid

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Cryo-electron microscopy (cryo-EM) has the power to capture details of proteins and other small biological structures at the molecular level.  This image shows proteins in the capsid, or outer co Dr. Wah Chiu, Baylor College of Medicine View Media

Larvae from the parasitic worm that causes schistosomiasis

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The parasitic worm that causes schistosomiasis hatches in water and grows up in a freshwater snail, as shown here. Bo Wang and Phillip A. Newmark, University of Illinois at Urbana-Champaign, 2013 FASEB BioArt winner View Media

Yeast cells with accumulated cell wall material

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Yeast cells that abnormally accumulate cell wall material (blue) at their ends and, when preparing to divide, in their middles. This image was captured using wide-field microscopy with deconvolution. Alaina Willet, Kathy Gould’s lab, Vanderbilt University. View Media

H1N1 Influenza Virus

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Related to image 6355. Dr. Rommie Amaro, University of California, San Diego View Media

Tongue 1

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Microscopy image of tongue. One in a series of two, see image 5811 National Center for Microscopy and Imaging Research (NCMIR) View Media

Cell-like compartments emerging from scrambled frog eggs

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Cell-like compartments spontaneously emerge from scrambled frog eggs, with nuclei (blue) from frog sperm. Endoplasmic reticulum (red) and microtubules (green) are also visible. Xianrui Cheng, Stanford University School of Medicine. View Media

Spinal nerve cells

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Neurons (green) and glial cells from isolated dorsal root ganglia express COX-2 (red) after exposure to an inflammatory stimulus (cell nuclei are blue). Lawrence Marnett, Vanderbilt University View Media

Three neurons and human ES cells

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The three neurons (red) visible in this image were derived from human embryonic stem cells. Undifferentiated stem cells are green here. Anirvan Ghosh lab, University of California, San Diego, via CIRM View Media

CRISPR surveillance complex

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This image shows how the CRISPR surveillance complex is disabled by two copies of anti-CRISPR protein AcrF1 (red) and one AcrF2 (light green). NRAMM National Resource for Automated Molecular Microscopy http://nramm.nysbc.org/nramm-images/ Source: Bridget Carragher View Media

Breast cancer cells change migration phenotypes

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Cancer cells can change their migration phenotype, which includes their shape and the way that they move to invade different tissues. Bo Sun, Oregon State University. View Media

Zebrafish larva

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You are face to face with a 6-day-old zebrafish larva. What look like eyes will become nostrils, and the bulges on either side will become eyes. Oscar Ruiz and George Eisenhoffer, University of Texas MD Anderson Cancer Center, Houston View Media

Zebrafish embryo

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A zebrafish embryo showing its natural colors. Zebrafish have see-through eggs and embryos, making them ideal research organisms for studying the earliest stages of development. Michael Shribak, Marine Biological Laboratory/University of Chicago. View Media

Quorum-sensing inhibitor limits bacterial growth

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To simulate the consequences of disrupting bacterial cell-to-cell communication, called quorum sensing, in the crypts (small chambers within the colon), the researchers experimented with an inhibitor Minyoung Kevin Kim and Bonnie Bassler, Princeton University View Media

Hydra 06

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Hydra magnipapillata is an invertebrate animal used as a model organism to study developmental questions, for example the formation of the body axis. Hiroshi Shimizu, National Institute of Genetics in Mishima, Japan View Media

Sticky stem cells

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Like a group of barnacles hanging onto a rock, these human cells hang onto a matrix coated glass slide. Ankur Singh and Andrés García, Georgia Institute of Technology View Media

Biofilm blocking fluid flow

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This time-lapse movie shows that bacterial communities called biofilms can create blockages that prevent fluid flow in devices such as stents and catheters over a period of about 56 hours. Bonnie Bassler, Princeton University View Media

Brain showing hallmarks of Alzheimer's disease

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Along with blood vessels (red) and nerve cells (green), this mouse brain shows abnormal protein clumps known as plaques (blue). Alvin Gogineni, Genentech View Media

Wild-type and mutant fruit fly ovaries

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The two large, central, round shapes are ovaries from a typical fruit fly (Drosophila melanogaster). Vladimir I. Gelfand, Feinberg School of Medicine, Northwestern University. View Media

Nucleolinus

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The nucleolinus is a cellular compartment that has been a lonely bystander in scientific endeavors. Mary Anne Alliegro, Marine Biological Laboratory View Media

Dicty fruit

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Dictyostelium discoideum is a microscopic amoeba. A group of 100,000 form a mound as big as a grain of sand. Featured in The New Genetics. View Media

Pathways: What is Basic Science?

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Learn about basic science, sometimes called “pure” or “fundamental” science, and how it contributes to the development of medical treatments. National Institute of General Medical Sciences View Media

Wound healing in process

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Wound healing requires the action of stem cells. Hermann Steller, Rockefeller University View Media

Induced stem cells from adult skin 02

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These cells are induced stem cells made from human adult skin cells that were genetically reprogrammed to mimic embryonic stem cells. James Thomson, University of Wisconsin-Madison View Media

Fluorescent microscopy of kidney tissue

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Serum albumin (SA) is the most abundant protein in the blood plasma of mammals. SA has a characteristic heart-shape structure and is a highly versatile protein. Tom Deerinck , National Center for Microscopy and Imaging Research View Media

Tracking embryonic zebrafish cells

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To better understand cell movements in developing embryos, researchers isolated cells from early zebrafish embryos and grew them as clusters. Liliana Solnica-Krezel, Washington University School of Medicine in St. Louis. View Media

Clathrin-mediated endocytosis

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Endocytosis is the process by which cells are able to take up membrane and extracellular materials through the formation of a small intracellular bubble, called a vesicle. Janet Iwasa, University of Utah View Media

Cell division with late aligning chromosomes

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This video shows an instance of abnormal mitosis where chromosomes are late to align. Gary Gorbsky, Oklahoma Medical Research Foundation View Media

Biofilm formed by a pathogen

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A biofilm is a highly organized community of microorganisms that develops naturally on certain surfaces. Scott Chimileski, Ph.D., and Roberto Kolter, Ph.D., Harvard Medical School. View Media

The Proteasome: The Cell's Trash Processor in Action

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Our cells are constantly removing and recycling molecular waste. This video shows one way cells process their trash. View Media

Golgi theories

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Two models for how material passes through the Golgi apparatus: the vesicular shuttle model and the cisternae maturation model. Judith Stoffer View Media

ATP Synthase

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Atomic model of the membrane region of the mitochondrial ATP synthase built into a cryo-EM map at 3.6 Å resolution. ATP synthase is the primary producer of ATP in aerobic cells. Bridget Carragher, <a href="http://nramm.nysbc.org/">NRAMM National Resource for Automated Molecular Microscopy</a> View Media

Human ES cells turn into insulin-producing cells

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Human embryonic stem cells were differentiated into cells like those found in the pancreas (blue), which give rise to insulin-producing cells (red). Eugene Brandon, ViaCyte, via CIRM View Media

A multicolored fish scale 1

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Each of the colored specs in this image is a cell on the surface of a fish scale. Chen-Hui Chen and Kenneth Poss, Duke University View Media

Cell-like compartments from frog eggs 5

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Cell-like compartments that spontaneously emerged from scrambled frog eggs, with nuclei (blue) from frog sperm. Endoplasmic reticulum (red) and microtubules (green) are also visible. Xianrui Cheng, Stanford University School of Medicine. View Media

Mouse embryo showing Smad4 protein

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This eerily glowing blob isn't an alien or a creature from the deep sea--it's a mouse embryo just eight and a half days old. The green shell and core show a protein called Smad4. Kenneth Zaret, Fox Chase Cancer Center View Media

Lysosomes

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Lysosomes have powerful enzymes and acids to digest and recycle cell materials. Judith Stoffer View Media

Mouse heart fibroblasts

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This image shows mouse fetal heart fibroblast cells. The muscle protein actin is stained red, and the cell nuclei are stained blue. Kara McCloskey lab, University of California, Merced, via CIRM View Media

Birth of a yeast cell

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Yeast make bread, beer, and wine. And like us, yeast can reproduce sexually. A mother and father cell fuse and create one large cell that contains four offspring. Juergen Berger, Max Planck Institute for Developmental Biology, and Maria Langegger, Friedrich Miescher Laboratory of the Max Planck Society, Germany View Media

Mouse heart muscle cells

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This image shows neonatal mouse heart cells. These cells were grown in the lab on a chip that aligns the cells in a way that mimics what is normally seen in the body. Kara McCloskey lab, University of California, Merced, via CIRM View Media

Immune cell attacks cell infected with a retrovirus

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T cells engulf and digest cells displaying markers (or antigens) for retroviruses, such as HIV. Kristy Whitehouse, science illustrator View Media

Cryo-ET cross-section of a rat pancreas cell

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On the left, a cross-section slice of a rat pancreas cell captured using cryo-electron tomography (cryo-ET). On the right, a 3D, color-coded version of the image highlighting cell structures. Xianjun Zhang, University of Southern California. View Media

Q fever bacteria in an infected cell

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This image shows Q fever bacteria (yellow), which infect cows, sheep, and goats around the world and can infect humans, as well. When caught early, Q fever can be cured with antibiotics. Robert Heinzen, Elizabeth Fischer, and Anita Mora, National Institute of Allergy and Infectious Diseases, National Institutes of Health View Media

Myelinated axons 2

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Top view of myelinated axons in a rat spinal root. Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View Media

Skin cell (keratinocyte)

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This normal human skin cell was treated with a growth factor that triggered the formation of specialized protein structures that enable the cell to move. Torsten Wittmann, University of California, San Francisco View Media

Yeast cells responding to a glucose shortage

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These yeast cells were exposed to a glucose (sugar) shortage. Mike Henne, University of Texas Southwestern Medical Center. View Media

Lily mitosis 10

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A light microscope image of a cell from the endosperm of an African globe lily (Scadoxus katherinae). This is one frame of a time-lapse sequence that shows cell division in action. Andrew S. Bajer, University of Oregon, Eugene View Media

Vibrio bacteria

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Vibrio, a type (genus) of rod-shaped bacteria. Some Vibrio species cause cholera in humans. Tina Weatherby Carvalho, University of Hawaii at Manoa View Media

Anglerfish ovary cross-section

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This image captures the spiral-shaped ovary of an anglerfish in cross-section. Once matured, these eggs will be released in a gelatinous, floating mass. James E. Hayden, The Wistar Institute, Philadelphia, Pa. View Media