It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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One third of the electricity produced on earth is used to power electric light bulbs!
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4.5 pounds of sunlight strike the Earth each day.
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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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Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
In zero gravity, a candle's flame is round and blue.
16
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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