Image of the Day

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image: Image of the Day: Fluorescent Flare

Image of the Day: Fluorescent Flare

By | January 5, 2016

When this engineered colony of E. coli reaches a certain density, the bacteria release a burst of fluorescent protein.

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image: Image of the Day: Stem Cell Shift

Image of the Day: Stem Cell Shift

By | January 4, 2016

In a larval fruit fly’s brain, neural stem cells lacking the Eyeless enzyme can overproliferate (green) and create tumors.

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image: Image of the Day: Thermal Cell

Image of the Day: Thermal Cell

By | December 31, 2015

Researchers observed a human endothelial cell under standard phase contrast microscopy (left) and thermal imaging using a laser probe on a titanium film (right).

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image: Image of the Day: Pouncing Hunter

Image of the Day: Pouncing Hunter

By | December 30, 2015

A red fox (Vulpes vulpes) leaps toward a meal after hearing it beneath the snow in Colorado.

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image: Image of the Day: Little Lilypad

Image of the Day: Little Lilypad

By | December 29, 2015

This cross-section of a yellow water lily (Nuphar lutea) leaf bud shows the two sides of the leaf waiting to unfurl.

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image: Image of the Day: O Christmas Bee

Image of the Day: O Christmas Bee

By | December 24, 2015

This American bumblebee (Bombus pensylvanicus) specimen was captured in Virginia and decked out for the holidays.

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image: Image of the Day: Playing Defense

Image of the Day: Playing Defense

By | December 23, 2015

Virus-like particles (purple) bud from the oviduct cells of a parasitoid wasp (Venturia canescens) to eventually shield the eggs from a host’s immune response.

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image: Image of the Day: Sea Serpents

Image of the Day: Sea Serpents

By | December 22, 2015

These short-nosed seasnakes (Aipysurus apraefrontalis), a species previously thought extinct, were photographed courting off the coast of Western Australia.

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image: Image of the Day: Iridescent Infection

Image of the Day: Iridescent Infection

By | December 21, 2015

Trypanosoma cruzi parasites (green), the cause of Chagas disease, multiply in mouse cardiac muscle cells (red) after infection.

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image: Image of the Day: Ancient Angiosperm

Image of the Day: Ancient Angiosperm

By | December 18, 2015

This virtual reconstruction of a seed from the Early Cretaceous is based on the embryo and nutrient storage structures preserved in a fossil.

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