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The Sun

Start the tour at the Sun Court. The Yellow disc in the center of the basketball court represents the Sun. The Sun is the closest star to Earth, at a mean distance from our planet of 149.60 million kilometers (92.96 million miles). This distance is known as an astronomical unit (abbreviated AU), and sets the scale for measuring distances all across the solar system. The Sun, a huge sphere of mostly ionized gas, supports life on Earth.

Info from NASA.gov

The Sun is a huge, glowing ball at the center of our solar system. The Sun provides light, heat, and other energy to Earth. The Sun is made up entirely of gas. Most of it is a type of gas that is sensitive to magnetism. This sensitivity makes this type of gas so special that scientists sometimes give it a special name: plasma. Nine planets and their moons, tens of thousands of asteroids, and trillions of comets revolve around the Sun. The Sun and all these objects are in the solar system. Earth travels around the Sun at an average distance of about 92,960,000 miles (149,600,000 kilometers) from it. [+]Read more at NASA.gov

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Special thanks to NASA .gov for the images.