The Sun occasionally emits powerful solar flares.
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The light you see from some stars today began traveling before humans existed.
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Black holes can bend light through gravitational lensing.
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Neptune has some of the fastest winds in the solar system.
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The observable universe is about 93 billion light‑years wide.
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The Voyager Golden Record was sent into space containing sounds and images from Earth.
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A day on Venus is longer than its year.
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Cosmic microwave background radiation is evidence of the early universe.
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Neutron stars are among the densest objects in the universe.
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