In this 1893 photo, a man stands inside a "spiracle" in Iceland. With just his head popping out, it looks as if a random head has sprouted from a rock formation. The photo comes from the collection of ...

POPOCATÉPETL VOLCANO, Mexico (AP) — In the predawn darkness, a team of scientists climbs the slope of Mexico’s Popocatépetl volcano, one of the world’s most active and whose eruption could affect ...

Inside the McDermitt Caldera, a 16‑million‑year‑old volcanic crater straddling the Oregon–Nevada border, geologists have ...

Things are heating up on the Big Island, and fast. Kilauea's 41st eruption episode is sending ash and large chunks of ...