When most people think of San Francisco, they picture pastel houses, rolling fog, and the sparkling Golden Gate Bridge. But ...

Local residents are riled as late-night construction went through the night for weeks at a time, ending as late (or early) as ...

April marks a seasonal shift, not only on Earth but also in our skies. As flowers bloom and rains arrive, the night sky reveals its own spectacle. Planets reposition themselves, a meteor shower sparks ...

Body temperature: At night, your body cools in response to regulation by the hypothalamus. This occurs during the non-rapid eye movement (NREM) stage of sleep, right when you start dozing off. When ...