Curious Kids: What is the sky?

By Jesse Rogerson, Assistant Professor, Science and Technology Studies Division of Natural Science, York University, Canada

Curious Kids is a series for children of all ages. Have a question you’d like an expert to answer? Send it to CuriousKidsCanada@theconversation.com.

What is the sky? — Pearl, 12, Regina, Sask.

What is the sky really? It’s interesting because the sky can be so many different things to us: it can be big, beautiful and blue, or grey, cloudy and rainy. It can also be full of stars, or full of orange and red clouds at sunset or sunrise.

The reason…

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