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.
Earth's layers: Exploring our planet inside and out — Earth's core wobbles every 8.5 years, new study suggests — Earth's solid inner core is 'surprisingly soft' thanks to hyperactive atoms ...
The temperature can change from very hot to very cold, depending on sunlight exposure. It can range from 1,700°C (3,092°F) in the sun to -270°C (-454°F) in the shade.
A wealth of new information about Earth’s inner core has surfaced in recent months. Scientists now have evidence that the planet’s innermost layer is changing shape.
If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. A group of scientists has discovered a hidden layer of molten rock under the Earth’s ...