High up in the Andes Mountains, the world is a barren mix of rock, snow and ice. Temperatures never rise above freezing. The air is so thin, it’s hard to breathe. At 20,000 feet above sea level, ...

Researchers risked their lives to study Andean leaf-eared mice on the inhospitable peaks of the Puna de Atacama volcanoes in ...

The volcano Uturuncu, located in the Central Andes mountains, has seemingly risen from the dead. While the volcano has not erupted in more than 250,000 years, it has recently shown signs of activity ...

The dry, wind-swept summits of volcanoes in the Puna de Atacama of Chile and Argentina are the closest thing on Earth to the surface of Mars due to their thin atmosphere and freezing temperatures. At ...

Ojos del Salado, the world's highest active volcano, offers adventure, desert scenery, crater lakes, and remote routes from Chile and Argentina.

Add to the long list of global warming concerns that melting ice caps could trigger more volcanic eruptions. Worse, researchers said Monday at a scientific conference in Prague, the increasing ...

Researchers work in the field at Cerro Ballena near Caldera, Chile, as part of a study showing that an increase in volcanic activity in the Andes in the Late Miocene Epoch likely resulted in a cooling ...