Ecuador has several dormant volcanoes not only challenging in themselves, but great practice for bigger peaks. Here’s a first-person account of one man’s Ecuadorian climbs. Cotopaxi volcano spewing ...

(CNN) — Scientists may have pinpointed a massive, oddly shaped volcano taller than Mount Everest on the surface of Mars — and it has been hiding in plain sight for decades, according to new research.

Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive. Their explosive force crafts mountains ...

Add Yahoo as a preferred source to see more of our stories on Google. Turning red-hot lava from an active volcano into electricity would be dangerous and unreliable. Volcanoes don’t erupt on ...

(AP) – Geothermal energy developers plan to pump 24 million gallons of water into the side of a dormant volcano in Central Oregon this summer to demonstrate new technology they hope will give a boost ...