The Earth is four and a half billion years old, so why they started appearing then is unknown, as is the mechanism to make ...

More is going on under the ice sheets that cover Antarctica than was previously thought after new technology finds tremors in ...

Two diamonds formed 700 kilometers below the Earth's surface reveal a life-giving synchronicity between shifting continents ...

Deep oceans of magma once sloshed about inside the crust of Mars, seismic measurements taken by NASA's InSight mission ...

Viscosity is one of the most fundamental physical properties used to describe how materials flow. It governs the movement of liquids, molten rocks and even slowly deforming regions deep inside the ...

Scientists have uncovered a previously unknown Martian rock containing a mineral never before found on the Red Planet.

Nearly 660 kilometers (410 miles) beneath Earth's surface lies one of the planet's most important internal boundaries. Known ...

By Will Dunham July 2 (Reuters) - While it once was temperate and lush, Earth's southernmost continent Antarctica froze over ...

The collision blasted a 1.5-kilometre-high curtain of rock, sediment and seawater skyward before it collapsed.

The early settlers of the region knew that Devils Lake had flooded in the past, before they chose their claims in 1882.

On July 5, REN TV will premiere a new series of the documentary project "What do we Know about Planet Earth?" in which ...