The Hanna H. Gray Fellows Program is a transformational award for postdoctoral scientists who show exceptional promise as future leaders in academic science, advancing foundational discoveries while ...

Science Education & Media HHMI’s science education and media programs are expanding participation in science with compelling programs for students, educators, and the broader public. Through free ...

Enzymes called RNA polymerases transcribe DNA into RNA. RNA is the intermediary that carries the information contained within DNA to the ribosomes, where the genetic information is synthesized into ...

This landscape of blue, red, and gold is a cross section through a developing human bone. Human bones have a hard outer layer made of condensed bone and a softer inner core of spongy bone. This ...

What am I looking at? This image is a 1.5-millimeter-thick horizontal slice through the brain of a mouse. It shows the neurons that produce serotonin in purple (1) and pyramidal neurons in green (2).

Love them or hate them, snakes are biologically fascinating. This image shows the skeleton of a corn snake. Its flexible spine and jaws allow it to eat animals like mice and rats that you would never ...

This is the underside of a gecko, offering a great view of their incredible feet and toes, which allow them to climb on nearly any surface. Get a closer view of the image Get a closer view of the ...

This Malayan jungle nymph may look like a rather prickly character, but the species is actually a gentle giant. In fact, it’s one of the largest and heaviest insects in its family, weighing up to 65 ...

What am I looking at? These are cells derived from monkey kidney tissue, growing in culture. They were filmed at a very slow frame rate overnight, and you are seeing the video played back here at a ...

What am I looking at? This is a single human hepatocyte. Its two nuclei are in blue (1). The other colors in this image are stains of the actin protein and are depth-coded, with red being the closest ...

This cross section through the head of a jumping spider shows off the interior structure of four of its eight eyes. Jumping spiders have the most acute vision of any terrestrial invertebrate. In fact, ...

Beauty is all around us. It is everywhere our eyes can see – in the breathtaking majesty of snowcapped mountains, in the tranquil shores of tropical beaches, and in the faces of those we love. But ...