What is the sun made of?

How do satellites stay in orbit? What is the sun made of?
13 March 2015
Presented by Chris Smith, Redi Tlhabi

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How do satellites stay in orbit? Why do my fingernails grow at different speeds on each hand? What is the sun made of? Where did the liquid in my cans go? Why do some children turn mute after trauma? Plus, why people smell their fingers after shaking hands...

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