Science
Why Is the Sky Blue — and Why Does It Turn Orange at Sunset?
Sunlight looks white, but it is really every colour mixed together. What happens next is the reason the sky changes colour twice a day.
Why does that happen?
Science
Experiments, discoveries and the everyday science hiding in plain sight — explained clearly, without the jargon.
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Science
How a Vaccine Teaches Your Body Before It Ever Meets the Germ
Your immune system learns from experience. A vaccine is a way of giving it the lesson without the illness.
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