Quasars, powered by supermassive black holes, can outshine entire galaxies by a factor of thousands.
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The Moon has lower gravity than Earth.
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The Moon is slowly moving away from Earth.
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Black holes have gravitational pulls so strong that not even light can escape.
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Rogue planets drift through space without orbiting a star.
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The Sun will eventually expand into a red giant.
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The Moon's surface is covered with regolith, a layer of loose rock and dust.
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There are rogue planets drifting through space with no star at all.
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The Milky Way is estimated to be over 100,000 light-years wide.
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