For centuries, planets beyond our solar system—called exoplanets—existed only in theory and science fiction. It seemed nearly impossible to detect planets light-years away, since the ...

The excited jiggle of Naef's cursor shows that the reading has fallen just where it should if an unseen planet is tugging ... expert at Lawrence Livermore National Laboratory, who is carrying ...

This story appears in the December 2009 issue of National Geographic magazine. It took humans thousands of years to explore our own planet and centuries to comprehend our neighboring planets ...

That’s why National Geographic and Rolex have partnered to support trailblazing scientific research, expeditions, and solutions to increase our understanding of the threats facing the planet’s ...

This story appears in the November 2015 issue of National Geographic magazine. Climates change. That’s a fact of nature. But Earth’s climate today is changing so dramatically that it’s ...