A number of well-known factors, including exposure to UV radiation, genetics and aging, can lead to cataracts, a condition ...

and they tried out smoking and they did all the things," Michelle recalled, "and every weekend was a nightmare, because we had to work to make sure that them being regular teenagers didn't wind up ...

Scientists are puzzled by a rock on Mars they've called "Skull Hill" and say originated from elsewhere. NASA’s Perseverance rover spotted the unusual specimen - featuring an eye socket-like shape - ...