How many of the 160 named volcanoes in the U.S. and territories do you know? If you live in Alaska you have a big advantage.

The dwarf planet Makemake, which chills out in the deep freeze of the outer Solar System, might be home to an ice volcano 1.

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 ...

Get ready for them to spend the whole day playing with this gravity-defying light-up orb and eating this literal half-pound Reese's Cup. View Entire Post › ...

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