What's inside Mexico's Popocatépetl volcano? Scientists obtain first 3D images
Associated Press
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Marco Calo, left, a geophysicist at the National Autonomous University of Mexico (UNAM), take a break on the slopes of the Popocatepetl volcano in Mexico, Friday, Dec. 5, 2025. (AP Photo/Eduardo Verdugo)Karina Rodriguez, left, a master's student, and Marco Calo, center, a geophysicist at the National Autonomous University of Mexico (UNAM), collect information from a monitoring station on the slopes of the Popocatepetl volcano in Mexico, Friday, Dec. 5, 2025. (AP Photo/Eduardo Verdugo)Marco Calo, a geophysicist at the National Autonomous University of Mexico (UNAM), rests near the campsite on the slopes of the Popocatepetl volcano, Mexico, Thursday, Dec. 4, 2025. (AP Photo/Eduardo Verdugo)Marco Calo, a geophysicist at the National Autonomous University of Mexico (UNAM), prepares food at the campsite on the slopes of the Popocatepetl volcano, Mexico, Thursday, Dec. 4, 2025. (AP Photo/Eduardo Verdugo)Students observe the moon near the campsite on the slopes of the Popocatepetl volcano, Mexico, Thursday, Dec. 4, 2025. (AP Photo/Eduardo Verdugo)
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Marco Calo, left, a geophysicist at the National Autonomous University of Mexico (UNAM), take a break on the slopes of the Popocatepetl volcano in Mexico, Friday, Dec. 5, 2025. (AP Photo/Eduardo Verdugo)