The Sun: Center of the Solar System
Learn about the sun, the center of our solar system, and its importance for life on Earth. Discover its size, composition, and role in the galaxy.
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<h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">How does the temperature at the Sun's surface compare to its core?</h2>
<p style="font-weight: normal; font-size: 1.2rem;">The surface is much cooler, at about 10,000 degrees Fahrenheit or 5500 degrees Celsius.</p>
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<h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">How long does it take the Sun to complete an orbit of the Milky Way?</h2>
<p style="font-weight: normal; font-size: 1.2rem;">About 230 million years.</p>
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<h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">How long does it take for sunlight to reach Earth?</h2>
<p style="font-weight: normal; font-size: 1.2rem;">About 8 minutes.</p>
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<h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What role does the Sun play in supporting life on Earth?</h2>
<p style="font-weight: normal; font-size: 1.2rem;">The Sun provides light, heat, and energy necessary for life to survive.</p>
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<h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What percentage of the solar system's total mass does the Sun account for?</h2>
<p style="font-weight: normal; font-size: 1.2rem;">More than 99%.</p>
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<h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What phenomena frequently mark the Sun's surface?</h2>
<p style="font-weight: normal; font-size: 1.2rem;">Sunspots and solar flares.</p>
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<h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">What process occurs at the Sun's core?</h2>
<p style="font-weight: normal; font-size: 1.2rem;">Nuclear fusion, where hydrogen atoms fuse to create helium.</p>
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<h2 style="font-weight: bold; margin-bottom: 3px; font-size: 1.5rem;">Why does the Sun appear larger and brighter than other stars?</h2>
<p style="font-weight: normal; font-size: 1.2rem;">Because it is much closer to Earth than any other star.</p>
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