There are more stars in the universe than grains of sand on Earth.
Fact #1680
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More Space Facts
The Bell Labs experiment led to the discovery of the cosmic microwave background.
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The Hubble Space Telescope revolutionized deep-space imaging.
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Venus has the longest day of any planet in the solar system.
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The Earth orbits the Sun at about 30 kilometers per second.
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The Earth's magnetic poles slowly shift over time.
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Some galaxies contain supermassive black holes millions of times the Sun’s mass.
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Comets can develop long tails when near the Sun.
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Black holes can slow time so much that seconds near them equal years far away.
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