Volcanoes are usually linked with exotic islands in the Pacific or dramatic landscapes in Iceland. What many people don't ...

But this lava in here is no more than 30,000 years. And part of it is only 3000 years old or even younger. It is so young that trees haven't had a chance to become established in it.

REYKJAVIK, Iceland — A short drive from Iceland’s capital, on a lava plateau blanketed with moss and grass, the earth exhales plumes of steam. In most places in the world, rocky landscapes ...

They are formed by lava welling up to the surface, where it cools and hardens, while denser material left in the mantle below a tessera forms a plateau made from a substance called residuum.

Scientists have located where a meteor crashed to Earth 790,000 years ago, saying the crater from the ancient impact is in southern Laos on the Bolaven Plateau.

They are formed by lava welling up to the surface, where it cools and hardens, while denser material left in the mantle below a tessera forms a plateau made from a substance called residuum.