"This is the moment where the metal detector has gone off and you've dug up something shiny. You still need to find out ...

To prevent dangerous levels of global warming, scientists say it won’t be enough to just stop burning fossil fuels that release carbon into the air. Because it’s virtually impossible for humanity to ...

Five hundred years ago, the Aztec civilization in today’s Mexico believed that the sun and all its power was sustained by blood from human sacrifice. Today, we know that the sun, along with all other ...

National Geographic Explorer Anand Varma points to something resembling a fish tank skeleton in a corner room of the lab. His office–or what would have been his office if he hadn’t considered using it ...