As a heat dome drives dangerous temperatures across much of the United States and renews concerns about extreme heat, USC ...

From the moment you step on Citadel Station in System Shock, you'll find yourself going toe to toe with a variety of Cyborgs, Mutants and Robots all trying to rip you limb from limb. To defend against ...

Hundreds of Nasca lines have been uncovered—with the help of AI Hundreds of Nasca lines have been uncovered—with the help of AI Could AI ever destroy humanity? We may soon know. Could AI ever destroy ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› Advice, staff picks, mythbusting, and more. Let us help you. Updated October 12, ...

This story appears in the April 2011 issue of National Geographic magazine. On the remote Peruvian island of Taquile, in the middle of the great Lake Titicaca, hundreds of people stand in silence on ...