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 ...

Months of relationship-building between Mexico City reporter María Verza and scientists at the National Autonomous University’s Geophysics Institute ...

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 ...

In the predawn darkness, a team of scientists climbed the slope of Mexico's Popocatépetl volcano, one of the world’s most active and whose eruption could affect millions of people.

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 ...

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.

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 ...

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 ...