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

For a long time, scientists thought the Earth's inner core was a solid ball of metal, sort of like a planet within a planet that sits some 3,000 miles (4,828 kilometers) below the surface.

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long ...

Scientists have confirmed that the Moon has a solid inner core with a density similar to iron. The core's structure mirrors ...

Powering spacecraft with solar energy may not seem like a challenge, given how intense the Sun's light can feel on Earth.

Well, from the aforementioned observations, it has been possible to determine that the Earth's inner core has temperatures exceeding 5,000 degrees Celsius, is at a depth of more than 5,000 ...

Earth’s inner core was long thought to be a solid sphere ... changing speed and direction as they encounter various layers and boundaries inside Earth. By analyzing how these waves travel ...

But exactly how it has remained inside the planet for billions of years ... The findings confirm that helium could stay locked in Earth's solid inner core for a long time, Olson told Live Science ...

Scientists confirm the Moon has a solid iron core, like Earth’s, with a molten outer layer. This discovery reshapes our ...

Halo On The Inside by Circuit des Yeux (aka CdY, aka Haley Fohr) is a disorienting departure from much of her earlier work.

Deep within Earth’s mantle lie two enormous, continent-sized structures known as LLVPs. Scientists once believed these ...

Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.