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     planete-astronomie.eu

     • The innermost region of the Sun is hidden from our eyes, and it looks like this stealth has enabled the core to conceal a massive secret. For the first time, scientists have been able to accurately measure the rotation of the solar core, revealing that it doesn't turn at the same speed as the surface – but rotates nearly four times faster.
     www.sciencealert.com/scientists-just-revealed-a-surprising-secret-about-the-sun-s-hidden-core

     Scientists Just Revealed a Hidden Secret About The Sun's ...

3. People also ask

   Is the Sun a star?

   • Our Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million kilometers) from Earth and it’s our solar system’s only star. Without the Sun’s energy, life as we know it could not exist on our home planet.

   Our Sun: Facts - Science@NASA

   science.nasa.gov/sun/facts/

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   What part of the Sun do we see from Earth?

   • The part of the Sun we see from Earth – the part we call the surface – is the photosphere. The Sun doesn’t actually have a solid surface because it’s a ball of plasma. Above the Sun’s surface are its thin chromosphere and the huge corona (crown). This is where we see features such as solar prominences, flares, and coronal mass ejections.

   Our Sun: Facts - Science@NASA

   science.nasa.gov/sun/facts/

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   What could live on the Sun?

   • Nothing could live on the Sun, but its energy is vital for most life on Earth. The temperature in the Sun's core is about 27 million degrees Fahrenheit (15 million degrees Celsius) – hot enough to sustain nuclear fusion. This creates outward pressure that supports the star's gigantic mass, keeping it from collapsing.

   Our Sun: Facts - Science@NASA

   science.nasa.gov/sun/facts/

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   Why is the Sun important?

   • The Sun is extremely important, accounting for over 99 per cent of the total mass in our Solar System.

   The Sun: Everything you need to know - BBC Science Focus Magazine

   www.sciencefocus.com/space/the-sun

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   How does the sun affect the Earth?

   • The sun also emits energized particles (neutrinos, protons) that make up the solar wind. This energy strikes Earth, where it warms the planet, drives our weather and provides energy for life. We aren't harmed by most of the UV radiation or solar wind because the Earth's atmosphere protects us.

   How the Sun Works - HowStuffWorks

   science.howstuffworks.com/sun.htm

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   Where is the Sun in the Milky Way?

   • Our Sun is in the Orion Spur. The Sun orbits the center of the Milky Way, bringing with it the planets, asteroids, comets, and other objects in our solar system. Our solar system is moving with an average velocity of 450,000 miles per hour (720,000 kilometers per hour).

   Our Sun: Facts - Science@NASA

   science.nasa.gov/sun/facts/

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4. science.nasa.gov › sun › factsOur Sun: Facts - Science@NASA

   science.nasa.gov › sun › facts

   • Cached

   Our Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million kilometers) from Earth and it’s our solar system’s only star. Without the Sun’s energy, life as we know it could not exist on our home planet.

   • Mysteries of the Sun - NASA Science

     Welcome to the Mysteries of the Sun. This unique NASA...

5. science.howstuffworks.com › sunHow the Sun Works - HowStuffWorks

   science.howstuffworks.com › sun

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   Aug 23, 2023 · The sun warms our planet every day, provides the light by which we see and is necessary for life on Earth. Learn about the sun.

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6. Videos

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     44:32

     youtube.com

     The Universe: Secrets of the Sun (S1, E1) | Full Episode

     10 Mar 2023

     448.2K views

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     53:06

     youtube.com

     Nova - National Geographic - Secrets Of The Sun Documentary

     25 Mar 2015

     15.3K views

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     42:41

     youtube.com

     Discovering the Secrets of the Sun | Space Science Documentary

     3 Dec 2015

     11.2K views

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7. www.forbes.com › sites › brucedormineyOur Sun’s 5 Biggest Remaining Mysteries - Forbes

   www.forbes.com › sites › brucedorminey

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   Jul 2, 2022 · What puzzles you most about the Sun? It's fair to say that we understand the Sun’s mass, age, size and total irradiance quite well, says Jackiewicz.

8. science.nasa.gov › resources › mysteries-of-the-sunMysteries of the Sun - NASA Science

   science.nasa.gov › resources › mysteries-of-the-sun

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   Welcome to the Mysteries of the Sun. This unique NASA resource on the web, in print, and with companion videos introduces Heliophysics: the study of the Sun's influence throughout the solar system and, in particular, its connection to the Earth and the Earth’s extended space environment.

9. www.scientificamerican.com › article › the-newThe New Biography of the Sun - Scientific American

   www.scientificamerican.com › article › the-new

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   Jun 1, 2018 · This basic story is what science has told for decades: solar birth, a boring stretch of time and then genesis. But powerful new space telescopes and the burgeoning field of “cosmochemistry,” as...

10. www.astronomy.com › science › the-sun-facts-size-andThe Sun: Facts, size, and fate of Earth’s blazing star

    www.astronomy.com › science › the-sun-facts-size-and

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    Oct 18, 2023 · Facts about our Sun, including its distance from Earth, what the Sun is made of, and how long it would take to drive there (hint: a long time!).

11. www.sciencefocus.com › space › the-sunThe Sun: Everything you need to know

    www.sciencefocus.com › space › the-sun

    The Sun is hotter in the middle than at its surface. Right at the core of the Sun, the temperature is about 15,000,000°C, hot enough for thermonuclear reactions to take place. But at the surface of the Sun, which scientists call the ‘photosphere’, the temperature is only 5,500°C.