The largest volcano in the solar system, Olympus Mons on Mars, is three times the height of Everest.
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Some stars collapse into black holes at the end of their life cycle.
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Dark energy is thought to drive the accelerating expansion of the universe.
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The Earth's core temperature rivals the surface of the Sun.
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The Earth's magnetic field shields the planet from solar wind.
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The observable universe is about 93 billion light‑years wide.
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A day on Mercury lasts longer than a year on Mercury.
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There are rogue planets drifting through space with no star at all.
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The observable universe is about 93 billion light‑years wide.
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