In the last 7 years, humanity has discovered 43 potentially habitable planets.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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A cow produces around 200,000 glasses of milk in her lifetime.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
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