Scientists are now able to grow 'beating' heart tissue in a lab!
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
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One third of the electricity produced on earth is used to power electric light bulbs!
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