Igneous rocks form when magma cools underground or erupts at the surface as lava. The magma rises into the Earth’s crust, where it can get trapped underground or erupt from volcanoes as molten lava.

Greek authorities ordered the suspension of the construction of a luxury hotel on one of Greece's most famous beaches, on the island of Milos.

That’s the channel inside a volcano that opens up to the surface. As it cools it becomes a very hard type of igneous rock. This one first formed over 350 million years ago. Then, millions of ...

Iceland has seen some major volcanic activity in the last couple of years. Travel expert Rick Steves has some advice for ...

A groundbreaking discovery has revealed an unexplained heat source on the Moon’s far side. Linked to an enormous granite ...

The history of the island, from the most powerful volcanic eruption ever experienced by the world to the devastating 7.8 ...

Anointed Australia’s greatest movie by the country’s film institute, “Hanging Rock,” in a new restoration, opens Friday at ...

The rivers of India serve as lifelines for the country, providing numerous benefits ranging from water supply for agriculture ...

Below Mount Jefferson and McKenzie Pass is a massive storehouse of water three times the size of Lake Mead, say Oregon ...

Since January 5, the Poás volcano began a new activity that has made experts follow it closely and even generate warnings for the population that visits the National Park.

Greek authorities have issued a warning to visitors to one of its most famous islands due to a surge in volcanic activity.

These are difficult times for New York farmers. And they’re getting older -- 60% of New York’s nearly 58,000 farmers are 55 ...