The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
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The Earth gets heavier each day by tons, as meteoric dust settles on it.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
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Pluto is smaller than Russia.
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There are two golf balls sitting on the moon.
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There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
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