Igneous rock is formed by the cooling of molten rock, either at the surface (lava), or underground (as granite or other similar rocks). The heat of molten rock usually incinerates organisms rather ...

Related video above: Hawaii's Kilauea volcano spews lava into the air on March 26, 2025The tall fountain of molten rock drew people to Hawaii Volcanoes National Park to check out the spectacle ...

"On Earth and Mars, iron and magnesium are some of the main contributors to igneous rocks, which form from the cooling of magma or lava. These rocks can include dark-colored minerals such as ...

Whether it’s the weekend or you have a window for an evening hike — an option for many of us between spring and fall ...

Geologists say Hawaii’s Kilauea volcano shot lava as high as 1,000 feet into the air during its most recent eruptive episode.