How cold is it in the universe?

The Coldest Spot in the Known Universe. Jan. 30, 2014: Everyone knows that space is cold. In the vast gulf between stars and galaxies, the temperature of gaseous matter routinely drops to 3 degrees K, or 454 degrees below zero Fahrenheit.Jan 30, 2014 read more

And if you travel out far away from everything in the Universe, you can never get lower than a minimum of just 2.7 Kelvin or -270.45 Celsius. This is the temperature of the cosmic microwave background radiation, which permeates the entire Universe. read more

The Coldest Spot in the Known Universe Jan. 30, 2014: Everyone knows that space is cold. In the vast gulf between stars and galaxies, the temperature of gaseous matter routinely drops to 3 degrees K, or 454 degrees below zero Fahrenheit. read more