According to National Geographic, the inner core of the Earth ranges between 9,000 and 13,000 degrees Fahrenheit. This is approximately as high as the temperature of the sun's surface. More »

The Earth's inner core is made up almost entirely of iron. The iron is extremely hot but does not melt, due to the high amount of pressure from the rest of the planet. More »

The inner core is the Earth’s deepest layer, and it is a solid iron ball that is approximately 1,500 miles in diameter. Although it is extremely hot, the iron cannot melt due to the high pressure. The inner core also con... More »

There is no way for the inner core of the Earth's temperature to be physically measured; however, according to mathematical equations based on what is known about the core, it is estimated that the core is approximately ... More »

As of April 26, 2013, a French research team has estimated the temperature of the Earth’s inner core at 10,800 degrees Fahrenheit. This is 1,800 degrees hotter than previous estimates. The newly hypothesized temperature ... More » Science Earth Science Layers of the Earth

The center of the Earth is called its inner core, which is solid and surrounded by the liquid outer core. The outer core is surrounded by the solid mantle layer, which moves in response to a temperature difference of at ... More »

The Earth consists of four layers: crust, mantle, outer core and inner core. Each layer has its own properties and characteristics that separates it from the other layers. More »