A supernova explosion can briefly outshine an entire galaxy of hundreds of billions of stars.
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The International Space Station is one of the most complex engineering projects ever built.
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There are rogue planets drifting through space with no star at all.
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Some pulsars emit beams of radiation like cosmic lighthouses.
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Magnetars have extremely powerful magnetic fields.
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There are rogue planets drifting through space with no star at all.
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The Oort Cloud is a theoretical shell of icy objects surrounding the solar system.
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The observable universe is about 93 billion light‑years wide.
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Solar flares originate from the Sun's surface.
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