Volcanoes act as windows deep into Earth. They help us understand the formation of our planet and the others in our solar ...

Discover the national monument in New Mexico that is something like a tribute to human exploration, with centuries of history ...

When the people of Beppu on Japan’s steamy island of Kyushu tell you to “go to hell”, it’s not an insult but a suggestion. From boiling mud pools to blood-red ponds, spouting geysers to crocodile pits ...