Geologists build preliminary account of Tonga eruption

On January 15, the volcano Hunga Tonga-Hunga Ha'apai devastated the nation of Tonga. The eruption triggered tsunamis as far afield as the Caribbean and generated atmospheric waves that traveled around the globe several times. ...

How volcanoes explode in the deep sea

Most volcanic eruptions take place unseen at the bottom of the world's oceans. In recent years, oceanography has shown that this submarine volcanism not only deposits lava but also ejects large amounts of volcanic ash.

Virus buffets largest Arctic expedition in history

The multinational team on the biggest Arctic research mission ever undertaken were prepared for problems from polar bear attacks to major snowstorms or even issues with building a runway on ice.

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