In April 2000, workers at the Naica Mines discovered a cave containing some of the largest crystals ever found. The Giant Crystal Cave, with crystals up to 39 feet long and weighing up to 55 tons, is ...
Volcanoes are not only terrestrial; they can also be underwater—and the latter can host their own ecosystems. After all, a hole in the Earth’s crust from which hot magma spews is not just a source of ...