Mars had an oxygen-rich atmosphere around 4 billion years ago
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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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The strangers in your dreams are actually people that you've seen in real life.
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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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There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
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