eli5: Why isn’t outer space hot (or at least not freezing)?

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The sun warms up our planet but space is cold. If I lit a candle and stood 20 feet away, I could see the light but not feel the warmth. So, why do we feel warmth from the sun but space isn’t warmed by it?

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Anonymous 0 Comments

It’s both. Depends if you’re in direct sunlight or not. In the near-vacuum of space, there’s very little to be warmed by the Sun. Space itself acts more as an insulator than a source of hot or cold.

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