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 Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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Liquid TIDE laundry detergent glows under a blacklight.
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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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Aluminum used to be more valuable than gold!
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
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