Picture this. We're floating through the cosmos on a pale blue dot, orbiting an average star in an unremarkable galaxy. The ...

NASA is preparing to send a crew back toward the Moon for the first time in more than half a century, and this time the ...

Humans aren't the only species that can pretend, a study shows. Scientists offered a bonobo imaginary juice and grapes in a ...

From Marilyn Monroe to medieval monks, a new book traces how eyeglasses shaped culture, science and the way we see today.