I think its solid because of the high pressures on it, but hopefully some edumacated FReeper can clarify that.
You’re might be right. From a website called “LiveScience” I have ... “Under the liquid-metal outer layer of the Earth’s core is a solid ball of superhot iron and nickel alloy about 760 miles (1,220 kilometers) in diameter. Scientists recently discovered the inner core is, at 10,800 degrees Fahrenheit (6,000 degrees Celsius), as hot as the surface of the sun.”