Astronauts grow up to 2 inches taller in space because the lack of gravity allows the spine to decompress.
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There are rogue planets drifting through space with no star at all.
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The Moon has no liquid water on its surface today.
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The heliosphere protects the solar system from interstellar radiation.
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In 1859, the Carrington Event caused powerful solar storms that disrupted telegraph systems.
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Solar flares originate from the Sun's surface.
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The International Space Station orbits Earth every 90 minutes.
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The International Space Station travels at about 28,000 kilometers per hour.
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Rogue planets drift through space without orbiting a star.
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