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When Luna’s family visits the Great Wall of China, they are all amazed to see just how big the wall really is. Which gets them wondering… is it possible to see buildings and things like the Great Wall of China from outer space?
Up Next in Earth To Luna
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Near and Far
When Luna spends time with her grandparents at the beach, she begins to wonder why Grandpa has to take his glasses off to see something close but Grandma needs to put hers on. Why do some people need glasses and others don’t? How do glasses work?
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Hello, hello!
After talking to Grandma and Grandpa on the phone, the trio get to wondering… how do telephones work? They begin a fun investigation and discover the electromagnetic waves!