No, the sun is not made out of solid stone. It's actually a giant ball of hot gas, primarily hydrogen and helium.

Here's why:

* Temperature: The sun's core is incredibly hot, reaching millions of degrees Celsius. At this temperature, no solid material could exist.

* Pressure: The immense pressure within the sun also prevents any solids from forming.

* Nuclear Fusion: The sun's energy comes from nuclear fusion, where hydrogen atoms combine to form helium, releasing massive amounts of energy. This process can only occur in a gaseous state.

So, while the sun might appear solid from Earth, it's actually a giant, glowing ball of gas.