“Noctis Mons” is the seventh-largest volcano on Mars, the biggest being this one pictured—Olympus Mons (artist's impression). Scientists have discovered a massive, deeply eroded giant shield volcano ...

Deep below the Earth's surface, magma is churning and flowing into the Axial Seamount, an underwater shield volcano about 300 miles off the coast of Oregon. As the volcano grows and tremors increase, ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

MAUNA KEA, Hawaii (AP) — Mauna Kea is a dormant 14,000-foot shield volcano. In Native Hawaiian lore, it is the first-born son of the sky father and earth mother. MAUNA KEA, Hawaii (AP) — Shane Palacat ...

Kama?ehuakanaloa (formerly L??ihi Seamount), a submarine Hawaiian volcano located about 20 miles off the south coast of the Big Island of Hawai'i, has erupted at least five times in the last 150 years ...