After dusk on Friday night, seven planets are expected to align in the night sky. But you'll need binoculars or a telescope ...

A new study has found that a warning sign of dementia may appear in your sleep, with nightmares becoming more prevalent years or even decades before memory loss and other symptoms ...

Tourists climbing Sicily's Mount Etna volcano at night in sneakers and light clothing to get a close-up view of an ongoing ...

Henry Cejudo and Song Yadong have had very different careers, but both have their backs against the wall this weekend.