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The sun: the heart of the solar system

Did you know that the sun is just as old as the solar system? And that that is 4.6 billion years? Here you will find more fun facts about the sun.

The sun

The sun is a very common star in the universe, but in our solar system it is the glowing center. And he provides all the energy for life on earth.

The sun is 4.6 billion years old, just as old as the solar system itself. The sun arose from a cloud of dust and gas that contracted, and from the material that was left then the planets were created.

The sun consists of gas and has no solid surface. Inside the sun you will find the core, where the sun produces all the energy. The temperature in the core of the sun is around 15 million ° C. The surface temperature is approximately 6000 ° C.

The sun is an ordinary star

In the universe there are billions of stars such as the sun. All the energy that life on earth needs comes from the sunlight. The plants grow under the sunlight and it is warm enough here for liquid water, and therefore drinking water.

Solar flare can be fatal for astronauts and satellites

Sun flares or solar eruptions can sometimes be seen on the surface of the sun. A great deal of material is thrown away from the sun with great force, and the most intense solar flares can influence the electrical systems of satellites and space probes. They are also very dangerous for astronauts in space. Fortunately, the atmosphere protects us here on earth against solar flares.

Scientists want to make energy the way the sun does

The sun creates light and heat by fusing hydrogen atoms into helium atoms. That process is called fusion. Many scientists are also working on fusion energy here on Earth, because that would give us an unlimited amount of energy. But this requires extremely high temperatures, and it has not yet been possible to produce energy in the same way as the sun does.

When the sun goes out

One day the sun will have converted all the hydrogen it contains into helium. At that moment, the sun will swell and become so large that its surface reaches beyond the place where the earth is now. After that the sun will collapse and eventually stop giving light. By that time there can be no more life on earth. But luckily that will only be 5.5 billion years.

Read more about the solar system.

Video: The Heart Of Solar System: How The Sun Works - Full Documentary (February 2020).

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