In zero gravity, a candle's flame is round and blue.
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Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
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One cubic foot of gold weighs more than 1,200 pounds!
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The average temperature at 40,000 feet above sea level is -60 F.
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Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
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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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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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