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Interesting facts about light from the Science, technology and Facilities Council (STFC). Includes 'Why is the Sky Blue?'.
Find out how light scattering makes the sky blue and clouds white.
What is lightning? Does lightning strike from the sky down, or the ground up? Can you have lightning without thunder? This site has all the answers.
How dark is your night sky? See the extent of light pollution across the UK and find the best spots for star gazing.
The Sky Survey app that helps your explore the night sky.
A great piece of software that simulates what you would see in the night sky at any location and any time.
A simple but clear animation showing why Mars seems to travel one direction across the sky and move back the other way.
Explore a map of the night sky and claim a place as your own.
A brief and well explained description of why the sky is blue.
Detailed explanation of why the sky is blue with more details about the atmosphere and experiments to do.
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