The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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4.5 pounds of sunlight strike the Earth each day.
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Iron weighs more after it rusts.
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Aluminum used to be more valuable than gold!
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The earth is approx. 6,588,000,000,000,000,000 tons.
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Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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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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