Have you ever been stuck on a problem, puzzling over something for what felt like ages without getting anywhere, but then ...

A new study reveals that this “invisibility” happens because the speed of our saccades sets a natural speed limit for what we ...

It’s a good thing you came in now,” a nurse told me before preparing my right eye for numbing drops, an injection and the ...

A sparkling cloudscape is revealed by the Hubble Space Telescope, which used its instruments to capture multiple wavelengths ...

Ever look down at what you’re reading and the lines of text start to blur together? Especially if you do a lot of reading ...