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 ...

Scientists start to solve mystery of what’s inside Mexico’s ‘majestic’ giant volcano - Most of the world’s volcanoes that pose a risk to humans already have detailed maps of their interiors, but not P ...

MEXICO CITY -- Mexico's National Civil Protection Coordination issued a yellow alert for the area around San Nicolás de los Ranchos after there were reports of exhalations, tremors, and explosions at ...

MEXICO CITY — Popocatepetl volcano shot a plume of ash and gas about 2 1/2 miles into the air Tuesday, dropping ash on cities near this capital and delaying some flights. A dense plume was visible ...

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 ...

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 ...

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 ...

Mexico Volcano Marco Calo, left, a geophysicist at the National Autonomous University of Mexico (UNAM), take a break on the slopes of the Popocatepetl volcano in ...

Scientists from Mexico’s National Autonomous University have created the first three-dimensional image of the Popocatépetl volcano's interior POPOCATÉPETL VOLCANO, Mexico -- In the predawn darkness, a ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. POPOCATÉPETL VOLCANO, Mexico (AP) — In the predawn darkness, a team of scientists climbs the ...