Research indicates that plants grow healthier when they are stroked.
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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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In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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The sun is 330,330 times larger than the earth.
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Nearly 50% of the world's scientists are assigned to military projects.
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