The movement of these tectonic plates leads to earthquakes and ... in the centre of the Earth, and is the hottest layer. It is spherical and solid and made up of iron and nickel.

Scientists have long been puzzled by volcanoes that erupt far from the edges of tectonic plates—known as intraplate volcanoes ...

Stromatolites: You Can't Spell Mold Without Old One of the big problems with Kelvin's estimates for the age of the Earth was ...

The mantle of the Earth, up to 1,800 miles (2,900 kms) thick and 84% of the Earth's volume, was assumed to be a simple ...

Like straight out of Julio Verne's Journey to the Center of the Earth, scientists from Northwestern University and the ...

These mountains are made of extremely dense and ancient material, giving scientists valuable clues about the Earth's early ...

An ash landfill in Shrewsbury, Massachusetts. Recent research by The University of Texas at Austin tallied up the potential rare earth elements that could be extracted from coal ash around the country ...

At the top of the world, there is a sea—the remains of one, at least. The summit rocks of Mount Everest, the highest ...

Discover the Oldest Lake on Earth, Lake Baikal, which has existed for 25 million years. Learn about its depth, biodiversity, ...

Some people just have a bug for traveling. They want to visit as many different places as possible while on this earth. Retired married couple Susan and Steve Wellons, along ...

Far below the earth’s surface lies an energy source with huge and eternal potential: geothermal heat. But the forces in the ...