Charlotte Lytton and Matthew Abbott traveled to Tonga to report this story. All photographs were made in May 2023. Sept. 1 at 6:00 a.m. Warning: This graphic requires ...

Scientists are investigating for the first time how dangerous the island's next big one could be.

WASHINGTON (CNN)-- In what a U.S. military official calls an "inadvertent encounter," a Chinese submarine hit an underwater sonar array being towed by the destroyer USS John McCain on Thursday.

Museum experts are exploring how to bring the science dioramas of yore into the 21st century, while ensuring scientific accuracy and acknowledging past ...

Once that sound hits an underwater object, it bounces back at the sub and the computers calculate the object's distance from the submarine. This is similar to dolphins and whales when they're ...

(CNN)-- A rapid Pacific submarine ... of the volcano, McGimsey said. Satellites picked up the ash cloud on Friday. The cloud detached from the area above the vent, indicating the underwater ...

An eruption of a submarine volcano called Funka Asane ... In August, another underwater volcano called Fukutoku-Okanoba, located around 130 kilometers south of Funka Asane, erupted, resulting ...

Prof Isobel Yeo, an expert on highly dangerous submarine volcanoes with Britain's National Oceanography Centre, is leading the mission. Around two-thirds of the world's volcanoes are underwater ...