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Why is space cold?

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Because of the distance of heat. Space can also be incredibly hot.

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Could you cite any information from a trusted website?
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Model Ask User Here!
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yeah, very cool info.
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It's empty and has nothing to produce heat.

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The sun.
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but there isnt anything to keep the heat contained
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So where does it go?
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dannie105 is right. We're a long way from the Sun, if we're close to the Sun, we're get burned.
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It's electromagnetic radiation. It goes outwards into the empty universe. I suppose people from other planets can see the sun.

Whether you are hot or cold depends on your spacecraft, and how much radiation it absorbs vs how much radiation it emits. The "temperature" of empty space itself doesn't matter much because it has almost no material to conduct heat.

If you're not in a spaceship, you have another problem. Without pressure, your sweat, saliva, and tears will boil even at room temperature, which will remove heat from your body.
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If you are wearing a space suit, it's white with a reflective helmet for a reason: to keep the sunlight from cooking you in your suit.

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