"Without that closed off, you'd be seeing 100-degree temperature air just flowing right through here, ripping in and making this no longer an ice cave," Wallace said ...

They tend to inflate like a balloon in between eruptions. At Axial, the sea floor is actually rising, and that’s a big signal.” ...

Hawaii’s Kilauea volcano was sending lava shooting into the air, creating an impressive spectacle during its latest eruption ...

Led by the University of Delaware’s Andrew Wozniak, associate professor in the School of Marine Science and Policy, a team of ...