Researchers have confirmed that the moon has a solid inner core, similar to Earth’s, composed of iron with a density of about 7,822 kg/m³. This discovery not only changes how we understand the ...

The deepest layer is a solid iron ball, about 1,500 miles (2,400 kilometers) in diameter. Although this inner core is white hot, the pressure is so high the iron cannot melt. The iron isn't pure ...

While most of us take the ground beneath our feet for granted, written within its complex layers, like the pages of a book, ...

In other words, these were asteroids that were on their way to becoming planets with a rocky crust and a molten iron core, much like the Earth is now. Many of these giant asteroids were later ...