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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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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The hair of an adult man or woman can stretch 25 percent of its length without breaking.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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The sun is 330,330 times larger than the earth.
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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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A cubic yard of air weighs about 2 pounds at sea level.
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