The Milky Way is estimated to be over 100,000 light-years wide.
Fact #177
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Venus has the longest day of any planet in the solar system.
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The Kuiper Belt contains many icy bodies beyond Neptune.
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The Moon's gravity affects ocean tides.
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The observable universe is about 93 billion light‑years wide.
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The Earth's atmosphere gradually fades into space.
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The light you see from some stars today began traveling before humans existed.
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The largest volcano is on Mars.
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Saturn could float in water because its density is low.
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