Space is completely silent — sound requires a medium to travel through, and space is a near-perfect vacuum.
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Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
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In 1859, a powerful solar storm disrupted telegraph systems across the world.
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Cosmic microwave background radiation is evidence of the early universe.
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Time moves slower in stronger gravitational fields.
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The telescope expanded understanding of the universe.
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The center of the Milky Way contains a supermassive black hole.
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Gravitational waves were detected a century after Einstein predicted them.
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