The Milky Way galaxy is about 100,000 light-years wide.
Fact #3133
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Solar eclipses occur when the Moon blocks the Sun from Earth's view.
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The Moon is slowly moving away from Earth.
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The Great Attractor is a gravitational anomaly influencing the motion of galaxies.
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Black holes can slow time so much that seconds near them equal years far away.
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The Moon's surface is covered with regolith, a layer of loose rock and dust.
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The Moon slowly moves away from Earth by a few centimeters each year.
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The surface of Venus is hidden beneath thick clouds.
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The light you see from some stars today began traveling before humans existed.
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