Two massive galaxies are bending light from the same distant quasar, creating a so-called Einstein zigzag lens that could help astronomers pin down how quickly the universe is expanding ...

Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio ...

The soft skirt holds the rigid lens in place, without rubbing against the cornea, which is the clear covering of the eye. Some people may benefit from a hybrid lens design. But hybrid contacts aren't ...