Cones outnumber rods only in the center of the retina, which is the area of greatest density. It is also the area most ...

What color is moonlight typically, and what other colors can moonlight look like from our perspective on Earth?

As well as explaining what makes the blue shark so darn blue, it also appears that through the same mechanism, that blue can ...

Blue sharks possess a secret hidden in their skin: a sophisticated arrangement of microscopic crystals and pigments that ...

The blue shark ( Prionace glauca) might be more than its name. Scientists investigating the sleek ocean predator's skin ...

Gastrointestinal cancers remain among the most common forms of cancer. While endoscopy has become a cornerstone of cancer screening and diagnosis over ...

Star-favored, board-certified aesthetics physician Dr. Glenicia Nosworthy explains how to choose the right high-tech tool for ...

Astronomers have studied the globular cluster 47 Tucanae extensively, but still have many questions. It may have an ...

Two 5-watt speakers are somehow squeezed into the tiny case. These sound OK, but not great. They're fairly tinny and don't ...

In the frozen reaches of the planet—glaciers, mountaintops, and icy groundwater—scientists have uncovered strange ...