Microscopic clues in volcanic ash reveal how magma breaks apart, heals, and sticks back together during explosive eruptions.

A rare satellite view reveals the persistent lava lake inside Mount Michael, an active volcano on remote Saunders Island near ...

POPOCATÉPETL VOLCANO, Mexico — 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 millions ...

Pilot Butte is a genuine extinct volcano with a free paved road to the summit, right inside Bend — but the drive-up window closes September 30. Here's what the climb, the views, and the deadline ...

Astronauts train to scale a Mars volcano at an analogue site in France. Lava tubes that crisscross the Martian surface might provide sanctuaries for the first human explorers on the Red Planet. (Photo ...

Add Yahoo as a preferred source to see more of our stories on Google. Marco Calo, left, a geophysicist at the National Autonomous University of Mexico (UNAM), take a break on the slopes of the ...

What's Inside Mexico's Popocatépetl? Scientists Obtain First 3D Images of the Whole Volcano POPOCATÉPETL VOLCANO, Mexico (AP) — In the predawn darkness, a team of scientists climbs the slope of Mexico ...

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 millions of people. Its mission: figure ...

POPOCATÉPETL VOLCANO, Mexico — 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 millions ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. POPOCATÉPETL VOLCANO, Mexico (AP) — In the ...