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The Sun is the medium-sized star located at the center of our solar system, around which the planets in our solar system, including Earth, revolve. The Sun is comprised of immensely hot gases, mostly hydrogen (approximately 70%) and helium (approximately 28%). The Sun provides warmth and energy to every planet in our solar system, with the heat from the Sun traveling even beyond the reaches of Pluto.

Life on Earth, through different means, harnesses the power of the Sun for energy. The energy of the Sun is produced through nuclear fusion. Plants use the power of the Sun through photosynthesis. Humans can harness the power of the Sun through the use of solar panels. This energy source is far more ecologically friendly than coal-based power sources. Without the energy and heat provided from the Sun, life on our planet could not exist.

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