When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection ...

Researchers from London's Moorfields Eye Hospital, biotech firm MeiraGTx and University College London have demonstrated that ...

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.

During this week, those observers, or those lovers who love to look at the sky and the stars, will be able to see throughout the week a giant X on the Moon, and no, it is not an ad ...