Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
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.
34
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
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.
11
Only about 2% of the world population has green eyes.
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