The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball ...

As the Aral Sea has been drained by irrigation and dried up, the mass loss on the surface has caused Earth’s upper mantle to rise up, lifting the emptied sea bed an average of 7 millimetres per year ...

To learn why, where, and how earthquakes happen, you need to familiarize your students with the interior of the Earth and a model called plate tectonics. The engine behind the earthquake machine ...

The faraway exoplanet could help provide answers as to why there are hardly any planets with twice the diameter of Earth.

Beneath the crust of North America, scientists have found that the deep roots of the continent are slowly dripping away in ...

New research is reshaping how scientists understand the earliest days of Earth’s formation—suggesting that the deep interior ...

Aurora lights on Uranus helped NASA’s Hubble Space Telescope measure the planet’s interior rotation rate, changing what astronomers know about how long a day is on the cold and windy world.

Sometimes the “whys” of history are lost, and that holds true to why Capt. John Cleves Symmes Jr. wholeheartedly believed the Earth was hollow.

Well, the verdict is in. The Moon is not made of green cheese after all.

The US Interior Department has reconfirmed ASX-listed Dateline Resources’ right to mine and explore for gold and rare earths ...

Many geologists attribute the great variation in the temperature gradient to complex irregularities in the structure of the earth's crust. Some even maintain that the interior of the earth is cold ...