Human eyes are actually spheres. The part that we can see is only just the front. That coloured circle is called the iris and the black spot in the middle is the pupil. This is the part of the eye ...

A new study by biomedical engineers and neuroscientists shows that the brain's visual regions play an active role in making sense of information.

Just when you think you've seen it all, researchers claim to have developed a way for people to see a color the human eye has ...

A team of scientists in California say they have discovered a new color they named olo, but you can't see the "most intense teal" with the naked eye.

the umpires only get to see it once - and they have to make their minds up instantly. Hawk-Eye has a couple of other useful features: Because of the six cameras tracking the ball, Hawk-Eye picks up ...

They are far more sensitive to light than cone cells, which is why you can sometimes see stars out of the corner of your eye at night, but when you look straight at them they seem to disappear. 5.