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Articles on Atmosphere

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It can stretch your mind to ponder what’s really out there. Stijn Dijkstra/EyeEm via Getty Images

Does outer space end – or go on forever?

Astronomers know a lot about what’s in outer space – and think it’s possible it never ends.
The sky can be so many different things: 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. (Shutterstock)

Curious Kids: What is the sky?

A young reader asks: What is the sky?

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