The Earth's inner core is solid.
Earth's Inner Core: A Solid Sphere
According to available information, specifically regarding Earth's structure, the inner core is primarily a solid ball. This is in contrast to the outer core, which is liquid. The solid inner core has significant dimensions.
Key Facts About Earth's Inner Core:
- Radius: Approximately 1,220 km (760 mi)
- Proportion of Earth's Radius: About 20%
- Proportion of Moon's Radius: About 70%
- State of Matter: Solid
The solid nature of the inner core is due to immense pressure despite high temperatures.
