Anonymous asked in Science & MathematicsAstronomy & Space · 6 months ago

Why is the sun hot?

20 Answers

  • 6 months ago
    Favorite Answer

    Wouldn't be much use if it were cold.

  • olivia
    Lv 5
    6 months ago

    What Causes the Sun to Give off Heat? The core of the sun is so hot and there is so much pressure, nuclear fusion takes place: hydrogen is changed to helium. Nuclear fusion creates heat and photons (light). The sun's surface is about 6,000 Kelvin, which is 10,340 degrees Fahrenheit (5,726 degrees Celsius).

  • 6 months ago

    The Sun has intense heat and pressure at it's core, and the hydrogen in the sun is undergoing fusion, being turned into helium. It's converting mass into energy, which we feel as heat and see as light.

  • 6 months ago

    Nuclear fusion generates a lot of heat.

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  • Tom S
    Lv 7
    6 months ago

    Thermo-nuclear reactions give off a lot of heat, hence the "thermo" part of the word.

  • Bill G
    Lv 6
    6 months ago

    Because it is a giant thermonuclear reaction many times the size of Earth.

  • 6 months ago

    Nuclear Fusion deep in the Sun's core turns Hydrogen into Helium

    Now speaking in a Squeaky Voice, Light Energy is produced as Photons

    They bounce about within the Sun's confines, building up Energy until they get released at the Speed of Light

    Source(s): The Sun's Surface is 6,000 C, inside, Millions of degrees C
  • Todd
    Lv 7
    6 months ago

    It's one giant explosion that will someday burn itself out. It's a ball of gas under incredible pressure. It has enough fuel to last long after humans are gone.

  • Anonymous
    6 months ago

    Because the sun is not ice. Lol

  • 6 months ago

    Nuclear fusion. Hydrogen + hydrogen —-> helium + energy.

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