Deep beneath the popular tourist island of Tenerife lies Europe's longest volcanic cave, stretching an impressive 11 miles.

Volcanic caves research advances the search for life on Mars by University of South Florida Organic-rich sulfate deposits can be seen in a lava tube from Lanzarote, Spain.

Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. A mile and a half beneath the ocean’s surface, the ...

The cave that the Kanohina system seems poised to supplant in the record books is on the other side of the Big Island. It was likely created during a 15th-century eruption of a different volcano ...

The closest equivalent on Earth would be the volcanic caves in Lanzarote, Spain, Prof Carrer explains, adding that the researchers visited those caves as part of their work. “It’s really exciting.

The moon is hostile. A newly found cave could be a lifesaver. Jupiter’s volcanic moon Io has been erupting for billions of years Jupiter’s volcanic moon Io has been erupting for billions of ...

Through the intricate study of lava tubes -- caves formed following volcanic eruptions when lava cools down -- an international team of researchers has uncovered clues about Earth's ancient ...

Animals and plants may be living in warm caves under Antarctica's ice, according to a study. Australian researchers said that Mount Erebus, an active volcano on Antarctica's Ross Island ...

The arms of an underwater robot helped uncover communities of giant tube worms and snails living in volcanic caves beneath warm vents in the Pacific Ocean. “Animals are able to live beneath ...