The Nobel Prize in Physics 2001   
The coldest planetary body in the Solar System is Triton, a moon of Neptune.
(-235 °C or 38 K)
The lowest temperatures in nature have been measured at Vostok, Antarctica.
(-89 °C or 183 K)
Absolute Zero

Physicists use a scale for temperature that is directly related to the speed of atoms. This is called the Absolute scale or the Kelvin temperature scale. Lord Kelvin (William Thomson) was a British physicist who developed the scale in 1848. The zero point (0 K) is the lowest possible temperature in the universe and is, hence, called absolute zero.


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