As more of the solar system has been explored and imaged, all kinds of geographical features have been mapped on many of our ...

Knowledge of the oceans is more than a matter of curiosity. Our very survival may hinge upon it,” John F. Kennedy, Jr., wrote ...

Wet and shivering, I rose from the outrigger of a Polynesian voyaging canoe. We’d been at sea all afternoon and most of the night. I’d hoped to get a little rest, but rain, wind and an ab ...