A predator that swam Earth's oceans more than half a billion years ago is unlike any creature that lives on our planet today.

Slight variations in a person's pulse rate could give clues about the likelihood of future cognitive decline, according to a ...

In small doses, boredom is the necessary counterbalance to the overstimulated world in which we live. It can offer unique ...

Your eyesight might be good enough to confidently read the tiny text at the optometrist from a few meters away.

The bacteria that live on your skin could be playing a role in protecting you from the sun's harmful UV rays, scientists have discovered.

We already rely heavily on hydrogen gas as a fuel source, and it's considered key to reaching crucial carbon-neutral goals.

First, light passes through the optical components of the eyes such as the cornea, pupil and lens. Together, they help focus the light onto the retina that senses light, while also controlling the ...

Antarctica's icy wilderness is warming rapidly under the weight of human-driven climate change, yet a new study points to an ...

In the cold, distant reaches of the Solar System, far beyond Pluto, astronomers have just identified what could be a new ...

Scientists in China have developed contact lenses that let wearers see light normally invisible to the human eye.

And yet, in high altitudes on the Tibetan Plateau, where oxygen levels in the air people breathe are notably lower than lower ...

We've long known that a lack of sleep is bad for the heart – but scientists are now starting to understand exactly how it ...