In the last 7 years, humanity has discovered 43 potentially habitable planets.
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The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
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Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
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Only about 2% of the world population has green eyes.
36
A cow produces around 200,000 glasses of milk in her lifetime.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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