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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.

Bioluminescence in a Tube

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Details about the basic biology and chemistry of the ingredients that produce bioluminescence are allowing scientists to harness it as an imaging tool. Credit: Nathan Shaner, Scintillon Institute. Nathan Shaner, Scintillon Institute 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

Sea urchin embryo 04

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Stereo triplet of a sea urchin embryo stained to reveal actin filaments (orange) and microtubules (blue). George von Dassow, University of Washington View Media

Neuron with labeled synapses

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In this image, recombinant probes known as FingRs (Fibronectin Intrabodies Generated by mRNA display) were expressed in a cortical neuron, where they attached fluorescent proteins to either PSD95 (gre Don Arnold and Richard Roberts, University of Southern California. View Media

Lily mitosis 13

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A light microscope image of cells 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

Hair cells: the sound-sensing cells in the ear

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These cells get their name from the hairlike structures that extend from them into the fluid-filled tube of the inner ear. Henning Horn, Brian Burke, and Colin Stewart, Institute of Medical Biology, Agency for Science, Technology, and Research, Singapore View Media

Yeast cell

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A whole yeast (Saccharomyces cerevisiae) cell viewed by X-ray microscopy. Inside, the nucleus and a large vacuole (red) are visible. Carolyn Larabell, University of California, San Francisco and the Lawrence Berkeley National Laboratory View Media

VDAC video 01

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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

A molecular interaction network in yeast 3

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The image visualizes a part of the yeast molecular interaction network. Keiichiro Ono, UCSD View Media

Biosensors illustration

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A rendering of an activity biosensor image overlaid with a cell-centered frame of reference used for image analysis of signal transduction. Gaudenz Danuser, Harvard Medical School 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

VDAC-1 (1)

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

Measles virus proteins

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A cross section of the measles virus in which six proteins (enlarged on the outside of the virus) work together to infect cells. Amy Wu and Christine Zardecki, RCSB Protein Data Bank. View Media

Epithelial cell migration

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High-resolution time lapse of epithelial (skin) cell migration and wound healing. It shows an image taken every 13 seconds over the course of almost 14 minutes. Michael Shribak, Marine Biological Laboratory/University of Chicago. View Media

Planting roots

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At the root tips of the mustard plant Arabidopsis thaliana (red), two proteins work together to control the uptake of water and nutrients. Philip Benfey, Duke University View Media

Lysosomes and microtubules

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Lysosomes (yellow) and detyrosinated microtubules (light blue). Lysosomes are bubblelike organelles that take in molecules and use enzymes to break them down. Melike Lakadamyali, Perelman School of Medicine at the University of Pennsylvania. View Media

Bence Jones protein MLE

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

Bacterial nanowire model

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A model of a Geobacter sulfurreducens nanowire created from cryo-electron microscopy images. Edward Egelman, University of Virginia. View Media

Calcium uptake during ATP production in mitochondria

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Living primary mouse embryonic fibroblasts. Mitochondria (green) stained with the mitochondrial membrane potential indicator, rhodamine 123. Nuclei (blue) are stained with DAPI. Lili Guo, Perelman School of Medicine, University of Pennsylvania 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

Dying melanoma cells

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Melanoma (skin cancer) cells undergoing programmed cell death, also called apoptosis. This process was triggered by raising the pH of the medium that the cells were growing in. Dylan T. Burnette, Vanderbilt University School of Medicine. View Media

Fly cells

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If a picture is worth a thousand words, what's a movie worth? Denise Montell, Johns Hopkins University School of Medicine View Media

Crystals of CCD-1 in complex with cefotaxime

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CCD-1 is an enzyme produced by the bacterium Clostridioides difficile that helps it resist antibiotics. Keith Hodgson, Stanford University. View Media

Fat cells (red) and blood vessels (green)

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A mouse's fat cells (red) are shown surrounded by a network of blood vessels (green). Daniela Malide, National Heart, Lung, and Blood Institute, National Institutes of Health View Media

Sponge

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Many of today's medicines come from products found in nature, such as this sponge found off the coast of Palau in the Pacific Ocean. Phil Baran, Scripps Research Institute View Media

Fruit fly nurse cells transporting their contents during egg development

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In many animals, the egg cell develops alongside sister cells. Adam C. Martin, Massachusetts Institute of Technology. View Media

Dose response curves

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Dose-response curves determine how much of a drug (X-axis) causes a particular effect, or a side effect, in the body (Y-axis). Featured in Medicines By Design. Crabtree + Company View Media

Brain cells in the hippocampus

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Hippocampal cells in culture with a neuron in green, showing hundreds of the small protrusions known as dendritic spines. Shelley Halpain, UC San Diego View Media

Dicer generates microRNAs

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The enzyme Dicer generates microRNAs by chopping larger RNA molecules into tiny Velcro®-like pieces. MicroRNAs stick to mRNA molecules and prevent the mRNAs from being made into proteins. Crabtree + Company View Media

Los ritmos circadianos y el núcleo supraquiasmático

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Los ritmos circadianos son cambios físicos, mentales y de comportamiento que siguen un ciclo de 24 horas. NIGMS View Media

Motor neuron progenitors derived from human ES cells

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Motor neuron progenitors (green) were derived from human embryonic stem cells. Image and caption information courtesy of the California Institute for Regenerative Medicine. Hans Keirstead lab, University of California, Irvine, via CIRM View Media

Protein kinases as cancer chemotherapy targets

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Protein kinases—enzymes that add phosphate groups to molecules—are cancer chemotherapy targets because they play significant roles in almost all aspects of cell function, are tightly regulated, and co Amy Wu and Christine Zardecki, RCSB Protein Data Bank. View Media

Anti-tumor drug ecteinascidin 743 (ET-743), structure without hydrogens 03

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Ecteinascidin 743 (ET-743, brand name Yondelis), was discovered and isolated from a sea squirt, Ecteinascidia turbinata, by NIGMS grantee Kenneth Rinehart at the University of Illinois. Timothy Jamison, Massachusetts Institute of Technology View Media

Hsp33 figure 1

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Featured in the March 15, 2012 issue of Biomedical Beat. Related to Hsp33 Figure 2, image 3355. Ursula Jakob and Dana Reichmann, University of Michigan View Media

Yeast cells with endocytic actin patches

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Yeast cells with endocytic actin patches (green). These patches help cells take in outside material. When a cell is in interphase, patches concentrate at its ends. Alaina Willet, Kathy Gould’s lab, Vanderbilt University. 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

Smooth ER

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The endoplasmic reticulum comes in two types: Rough ER is covered with ribosomes and prepares newly made proteins; smooth ER specializes in making lipids and breaking down toxic molecules. Judith Stoffer View Media

Snowflake yeast 2

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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

Bacterial symbionts colonizing the crypts of a juvenile Hawaiian bobtail squid light organ

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A light organ (~0.5 mm across) of a Hawaiian bobtail squid, Euprymna scolopes, stained blue. Margaret J. McFall-Ngai, Carnegie Institution for Science/California Institute of Technology, and Edward G. Ruby, California Institute of Technology. View Media

H1 histamine receptor

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The receptor is shown bound to an inverse agonist, doxepin. Raymond Stevens, The Scripps Research Institute View Media

Proteasome

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This fruit fly spermatid recycles various molecules, including malformed or damaged proteins. Sigi Benjamin-Hong, Rockefeller University View Media

Mouse brain slice showing nerve cells

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A 20-µm thick section of mouse midbrain. The nerve cells are transparent and weren’t stained. Michael Shribak, Marine Biological Laboratory/University of Chicago. View Media

Axolotl showing nervous system

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The head of an axolotl—a type of salamander—that has been genetically modified so that its developing nervous system glows purple and its Schwann cell nuclei appear light blue. Prayag Murawala, MDI Biological Laboratory and Hannover Medical School. View Media

Respiratory droplet

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This painting shows a cross section of a small respiratory droplet, like the ones that are thought to transmit SARS-CoV-2, the virus that causes COVID-19. Amy Wu and Christine Zardecki, RCSB Protein Data Bank. View Media

Seeing signaling protein activation in cells 04

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Cdc42, a member of the Rho family of small guanosine triphosphatase (GTPase) proteins, regulates multiple cell functions, including motility, proliferation, apoptosis, and cell morphology. Klaus Hahn, University of North Carolina, Chapel Hill Medical School View Media

Cryo-EM reveals how the HIV capsid attaches to a human protein to evade immune detection

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The illustration shows the capsid of human immunodeficiency virus (HIV) whose molecular features were resolved with cryo-electron microscopy (cryo-EM). Juan R. Perilla, University of Illinois at Urbana-Champaign View Media

Single-cell “radios” video

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Individual cells are color-coded based on their identity and signaling activity using a protein circuit technology developed by the Coyle Lab. Scott Coyle, University of Wisconsin-Madison. View Media

DNA replication origin recognition complex (ORC)

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A study published in March 2012 used cryo-electron microscopy to determine the structure of the DNA replication origin recognition complex (ORC), a semi-circular, protein complex (yellow) that recogni Huilin Li, Brookhaven National Laboratory View Media

Transient receptor potential channel TRPV5

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A 3D reconstruction of a transient receptor potential channel called TRPV5 that was created based on cryo-electron microscopy images. Vera Moiseenkova-Bell, University of Pennsylvania. View Media