Why is it cold in space?

Answer

It is generally cold in space because there is no medium to conduct heat emitted by the sun. Transfer of heat require a medium as heat is transferred by conduction, convection or radiation and since there is no medium in space to facilitate this transfer, space is cold and does not benefit from the sun's heat.
Q&A Related to "Why is it cold in space?"
It depends where you are. A previous poster mentioned the average temperature of residual heat at 2.7 kelvin. In deep space, that's the answer to go with. But more locally, with
http://www.quora.com/How-cold-is-space
1. Open the Start menu and type "notepad, then click "Notepad" from the list of results. 2. Click "File, then "Open" and select your "cfm"
http://www.ehow.com/how_12118362_kill-white-space-...
I believe it is about 3 degrees Kelvin. That is minus 270 degrees Celsius. This is known as the Cosmic Microwave Background Radiation(CMB) . Pensias and Wilson, using a radio telescope
http://wiki.answers.com/Q/How_cold_is_it_in_deep_s...
The matter in outer space is actually very hot. What's between the matter gets cold because
http://www.chacha.com/question/why-is-outer-space-...
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