Every year, toys are kindly sent in from toy retailers all around the country, and the toys demoed by children on The Late ...

National Geographic's enterprising photographers have helped readers explore and learn about our beautiful world through their images for more than a century. Here is their best work from the past ...

Illustration of the typical values of SSS in the global oceans ... The influence of tides on the ocean's general circulation is largely limited to mixing near the bottom in shallow water, such as ...