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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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Your body is creating and killing about 2.4 million red blood cells per second.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Mars had an oxygen-rich atmosphere around 4 billion years ago
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