• Question: What is the fuel of the sun and what does it react with to explode?

    Asked by jamesat79 to Steve on 19 Jun 2013.
    • Photo: Steven Gardner

      Steven Gardner answered on 19 Jun 2013:


      The fuel of the Sun is Hydrogen, specifically a special type of hydrogen called Deuterium.

      The sun fuses together two Deuterium particles to make Helium, using extreme heat and pressure. The helium weighs slightly less than the two Deuterium particles combined, and the leftover mass is released as energy (according to the famous equation, E=mc^2).

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