One the John Muir's finest pieces--and one of my favorite pieces of writing--is about surviving a sudden snowstorm with the help of fumaroles. The whole thing is very much worth reading. Our ...

In recent years, scientists have made amazing discoveries that give them clues into the past. For example, a huge new ocean with more water than all surface oceans was found deep beneath the Earth’s ...

George Steinmetz was drawn to Mount Erebus, in Antarctica, by the ice. The volcano constantly sputters hot gas and lava, sculpting surreal caves and towers that the photographer had read about and was ...