6th December 2019

caltech
14

Is the sun made of fire or lava?

What is the Sun made of? The Sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur.

In this way, is the sun on fire or burning?

Answer: The Sun does not "burn", like we think of logs in a fire or paper burning. The Sun glows because it is a very big ball of gas, and a process called nuclear fusion is taking place in its core.

How is the sun able to burn in space?

So, the Sun can "burn" hydrogen to helium without the need for oxygen. It should be noted that in the presence of carbon, nitrogen and oxygen, stars heavier than the Sun may burn hydrogen to helium by using the C, N and O as catalysts. Even in these stars, however, an absence of oxygen does not prevent nuclear burning.

Why does the sun keeps on burning?

The temperature of the sun's surface is about 10,340 degrees Fahrenheit (5,726 degrees Celsius). The sun burns using a nuclear fusion process, combining hydrogen into helium. When the sun runs out of hydrogen, it will fuse helium and other heavier elements until it runs out of fuel.
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