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Our Sun is an ordinary star; however, as our own star, it holds special status for us and is essential to our existence. The Sun's gravity holds the solar system together, and nuclear fusion within the Sun supplies the energy for life on Earth. Without the Sun, Earth would be a drastically different place. This video segment presents some basic facts about our Sun. Topics include its size and heat relative to other stars, and Earth's distance from the Sun. A background essay and discussion questions are included. The segement is one minute twenty-eight seconds in length.
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