Hank explains absolute zero: -273.15 degrees Celsius - and the coldest place in the known universe may surprise you. A correction on our use of the phrase "degrees Kelvin" can be found in this video: • This Is What Climate Change Feels Like - beginning at 6:43. Like SciShow on Facebook: / scishow Follow SciShow on Twitter: / scishow References: Minimum zero point energy derived from uncertainty principle: http://hyperphysics.phy-astr.gsu.edu/...