Is the Earth's core solid, liquid, or gas? - Quora

Answer (1 of 7): The outer core (between ~1220 km to ~3400 km from the Earth’s center) is theorized to be liquid, while the inner core (less than 1220 km from the center) is solid. This is based on seismic data, where the inner ore has been observed to reflect seismic waves.

Are the giant gas planets combustible? - Quora

What is the Earth's core? - Quora

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How do scientists study the Earth's core, and what kind of tools and techniques do they use? - Quora

If the Earth's crust is so thin relative to the thickness of the core and mantle, how come we don't feel all that heat? - Quora

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What is the major difference between the inner core and the outer core? - Quora

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Is the Earth's core solid, liquid, or something else? - Quora

What makes a gas planet a planet instead of a collection of gas? - Quora

Where is the core of the Earth? - Quora

How big are the solid center of all the gas giant planets? - Quora