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 ...

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 ...

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Trump's latest 'unhinged' attack on a female journalist is 'quite alarming,' experts say Trump paves way for deportations to ...

Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help ...

Rivers of lava flowed down several vents of the Halemaʻumaʻu crater on Hawaii's Kilauea volcano overnight Monday — the latest ...

Hawaii 's Kilauea volcano erupted again this week, sending lava more than 800 feet into the air during a roughly 10-hour ...

A supermassive black hole is reawakening inside a distant galaxy cluster—and after almost 100 million years of slumber, ...

Deep in the cosmos, about a billion light-years away, a monster with a gargantuan appetite has woken up. For roughly 100 ...

Video shows continued dome-shaped lava fountains reaching 50 feet at Halemaʻumaʻu, feeding lava flows from both north and ...

USGS surveillance footage shows Hawaii's Kilauea volcano spewing lava on Sunday:: Kilauea volcano, Hawaii:::: This is the ...