How Cold Is Space Reddit
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Solid objects get cold in space assuming ideal vacuum only by radiation loss.
How cold is space reddit. Empty space has no temperature. The atoms in space do have a temperature themselves and that temperature is very low roughly 2 7 kelvin or 454 fahrenheit. It s only when you put a thing in space like a rock or an astronaut that you can measure temperature.
So very cold is the answer. 8 bill nye america s iconic science guy was torn to shreds on reddit while holding. Every object at a given temperature will radiate energy heat in the form of electromagnetic waves photons due to spontaneous emission the power of the emitted heat radiation follows the stefan boltzmann law and is proportional to the fourth power of temperature.
Apparently this is a question people ask and they don t like it when you make fun of them. It s about 3 kelvin or 270 degrees celsius or 455 degrees fahrenheit. Space is cold in the sense that it s big and empty and any object placed in space can radiate a limitless amount of energy in all directions so if there is no sun nearby to warm it up it will.
The same phenomenon also works in reverse that is. Some atoms can be much much hotter than that that s why we say that space is cold. When i watch some scifi movie where an astronaut gets off his spacesuit he immediatelly freezes to ice.
Click to share on reddit opens. This question was originally answered on quora by c stuart hardwick. There is not much in space to absorb the heat radiating from the sun so it just passes on by.
On earth you warm up either air or water which is denser so you get colder earlier. The space has a temperature of 2 7 kelvin. That s not to say every atom in space has a temperature of 2 7 k.
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