Image and Video Gallery

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.

Pulsating response to stress in bacteria - video

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By attaching fluorescent proteins to the genetic circuit responsible for B. subtilis's stress response, researchers can observe the cells' pulses as green flashes. Michael Elowitz, Caltech University View Media

Snowflake yeast 1

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Multicellular yeast called snowflake yeast that researchers created through many generations of directed evolution from unicellular yeast. William Ratcliff, Georgia Institute of Technology. View Media

Cell toxins

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A number of environmental factors cause DNA mutations that can lead to cancer: toxins in cigarette smoke, sunlight and other radiation, and some viruses. Judith Stoffer View Media

Mitosis and meiosis compared

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Meiosis is used to make sperm and egg cells. During meiosis, a cell's chromosomes are copied once, but the cell divides twice. Judith Stoffer View Media

Dividing cell in metaphase

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This image of a mammalian epithelial cell, captured in metaphase, was the winning image in the high- and super-resolution microscopy category of the 2012 GE Healthcare Life Sciences Cell Imaging Compe Jane Stout in the laboratory of Claire Walczak, Indiana University, GE Healthcare 2012 Cell Imaging Competition View Media

Cellular traffic

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Like tractor-trailers on a highway, small sacs called vesicles transport substances within cells. This image tracks the motion of vesicles in a living cell. Alexey Sharonov and Robin Hochstrasser, University of Pennsylvania View Media

CRISPR Illustration Frame 5

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This illustration shows, in simplified terms, how the CRISPR-Cas9 system can be used as a gene-editing tool. This is the fifthframe in a series of five. View Media

HIV Infected Cell

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The human immunodeficiency virus (HIV), shown here as tiny purple spheres, causes the disease known as AIDS (for acquired immunodeficiency syndrome). Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View Media

DDR2 Receptors Attach to Collagen in Breast Tumor

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On the left, the boundary of a breast tumor (yellow) attaches to collagen fibers that are closest to it (green) using DDR2. On the right, a tumor without DDR2 remains disconnected from the collagen. Callie Corsa and Suzanne Ponik, Washington University School of Medicine in St. Louis View Media

Fruit fly ovary

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A fruit fly ovary, shown here, contains as many as 20 eggs. Fruit flies are not merely tiny insects that buzz around overripe fruit—they are a venerable scientific tool. Denise Montell, Johns Hopkins University and University of California, Santa Barbara View Media

Confocal microscopy of perineuronal nets in the brain 2

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The photo shows a confocal microscopy image of perineuronal nets (PNNs), which are specialized extracellular matrix (ECM) structures in the brain. Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View Media

Honeybees marked with paint

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Researchers doing behavioral experiments with honeybees sometimes use paint or enamel to give individual bees distinguishing marks. Gene Robinson, University of Illinois at Urbana-Champaign. View Media

Protein from E. faecalis

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X-ray structure of a DNA repair enzyme superfamily representative from the human gastrointestinal bacterium Enterococcus faecalis. Midwest Center for Structural Genomics View Media

800 MHz NMR magnet

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Scientists use nuclear magnetic spectroscopy (NMR) to determine the detailed, 3D structures of molecules. Asokan Anbanandam, University of Kansas View Media

DNA replication illustration (with labels)

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During DNA replication, each strand of the original molecule acts as a template for the synthesis of a new, complementary DNA strand. Crabtree + Company View Media

Induced pluripotent stem cells from skin 02

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These induced pluripotent stem cells (iPS cells) were derived from a woman's skin. Blue show nuclei. Green show a protein found in iPS cells but not in skin cells (NANOG). Kathrin Plath lab, University of California, Los Angeles, via CIRM View Media

Nucleolus subcompartments spontaneously self-assemble 3

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What looks a little like distant planets with some mysterious surface features are actually assemblies of proteins normally found in the cell's nucleolus, a small but very important protein complex lo Nilesh Vaidya, Princeton University View Media

VDAC video 02

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This video shows the structure of the pore-forming protein VDAC-1 from humans. Gerhard Wagner, Harvard Medical School View Media

Drugs enter skin

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Drugs enter different layers of skin via intramuscular, subcutaneous, or transdermal delivery methods. See image 2532 for a labeled version of this illustration. Crabtree + Company View Media

Cell proliferation in a quail embryo

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Image showing that the edge zone (top of image) of the quail embryo shows no proliferating cells (cyan), unlike the interior zone (bottom of image). Non-proliferating cell nuclei are labeled green. Andrés Garcia, Georgia Tech View Media

Mapping human genetic variation

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This map paints a colorful portrait of human genetic variation around the world. Noah Rosenberg and Martin Soave, University of Michigan View Media

Neutrophil-like cells migrating in a microfluidic chip

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Neutrophil-like cells (blue) in a microfluidic chip preferentially migrating toward LTB4 over fMLP. Caroline Jones, University of Texas at Dallas. View Media

From DNA to Protein

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Nucleotides in DNA are copied into RNA, where they are read three at a time to encode the amino acids in a protein. Many parts of a protein fold as the amino acids are strung together. Crabtree + Company View Media

X-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor 1

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X-ray co-crystal structure of Src kinase bound to a DNA-templated macrocycle inhibitor. Markus A. Seeliger, Stony Brook University Medical School and David R. Liu, Harvard University View Media

Lily mitosis 06

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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

Chromium X-ray source

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In the determination of protein structures by X-ray crystallography, this unique soft (l = 2.29Å) X-ray source is used to collect anomalous scattering data from protein crystals containing light atoms The Southeast Collaboratory for Structural Genomics View Media

Dimeric ferredoxin-like protein from an unidentified marine microbe

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This is the first structure of a protein derived from the metagenomic sequences collected during the Sorcerer II Global Ocean Sampling project. Joint Center for Structural Genomics View Media

Stetten Lecture 2017poster image

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This image is featured on the poster for Dr. Rommie Amaro's 2017 Stetten Lecture. Dr. Rommie Amaro, University of California, San Diego View Media

Cryo-electron microscopy revealing the "wasabi receptor"

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The TRPA1 protein is responsible for the burn you feel when you taste a bite of sushi topped with wasabi. Jean-Paul Armache, UCSF View Media

Bee venom toxin destroying a cell

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This video condenses 6.5 minutes into less than a minute to show how the toxin in bee venom, called melittin, destroys an animal or bacterial cell. Huey Huang, Rice University View Media

RNA folding in action

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An RNA molecule dynamically refolds itself as it is being synthesized. When the RNA is short, it ties itself into a “knot” (dark purple). Julius Lucks, Northwestern University View Media

Cysteine dioxygenase from mouse

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Model of the mammalian iron enzyme cysteine dioxygenase from a mouse. Center for Eukaryotic Structural Genomics, PSI View Media

Human endoplasmic reticulum membrane protein complex

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A 3D model of the human endoplasmic reticulum membrane protein complex (EMC) that identifies its nine essential subunits. Rebecca Voorhees, California Institute of Technology. View Media

Bovine milk alpha-lactalbumin (1)

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A crystal of bovine milk alpha-lactalbumin protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View Media

Yeast cells pack a punch

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Although they are tiny, microbes that are growing in confined spaces can generate a lot of pressure. In this video, yeast cells grow in a small chamber called a microfluidic bioreactor. Oskar Hallatschek, UC Berkeley View Media

Fruit fly retina 01

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Image showing rhabdomeres (red), the light-sensitive structures in the fruit fly retina, and rhodopsin-4 (blue), a light-sensing molecule. Hermann Steller, Rockefeller University View Media

Hippocampal neuron from rodent brain

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Hippocampal neuron from rodent brain with dendrites shown in blue. The hundreds of tiny magenta, green and white dots are the dendritic spines of excitatory synapses. Shelley Halpain, UC San Diego View Media

In vitro assembly of a cell-signaling pathway

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T cells are white blood cells that are important in defending the body against bacteria, viruses and other pathogens. Xiaolei Su, HHMI Whitman Center of the Marine Biological Laboratory View Media

Mouse colon with gut bacteria

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A section of mouse colon with gut bacteria (center, in green) residing within a protective pocket. Sarkis K. Mazmanian, California Institute of Technology View Media

Research mentor and student

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A research mentor (Lori Eidson) and student (Nina Waldron, on the microscope) were 2009 members of the BRAIN (Behavioral Research Advancements In Neuroscience) program at Georgia State University in A Elizabeth Weaver, Georgia State University View Media

Lily mitosis 05

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Bioluminescent imaging in adult zebrafish - overhead view

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Luciferase-based imaging enables visualization and quantification of internal organs and transplanted cells in live adult zebrafish. Kenneth Poss, Duke University View Media

Glucose and sucrose

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Glucose (top) and sucrose (bottom) are sugars made of carbon, hydrogen, and oxygen atoms. Carbohydrates include simple sugars like these and are the main source of energy for the human body. Crabtree + Company View Media

A Growing Bacterial Biofilm

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A growing Vibrio cholerae (cholera) biofilm. Cholera bacteria form colonies called biofilms that enable them to resist antibiotic therapy within the body and other challenges to their growth. Jing Yan, Ph.D., and Bonnie Bassler, Ph.D., Department of Molecular Biology, Princeton University, Princeton, NJ. View Media

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