At first thought, volcanoes might seem like the perfect natural disposal system. They are incredibly hot, appear to swallow anything in their path, and seem limitless in their depth. So why not use ...

Lava flows from a fissure in the aftermath of eruptions from the Kilauea volcano on Hawaii's Big Island, May 22, 2018. Andrew Richard Hara/Ena Media Hawaii via Getty Images But not all lavas are the ...

A volcanologist answers your questions about glass-shard hairballs, cooking breakfast over lava, Gollum's end on Mount Doom, ...

What happens when humanity decides volcanoes are the universe’s most dramatic trash cans? Spoiler: it’s not as tidy—or as ...