To be pedantic, the coldest place on earth is in a laboratory (I don't know who actually has the record right now). In fact, the coldest known places in the un

To be pedantic, the coldest place on earth is in a laboratory (I don't know who actually has the record right now). In fact, the coldest known places in the universe are in these laboratories. The Boomerang Nebula is the coldest non-laboratory place that we know of in the universe, at 1K. This University of Nottingham video on laser cooling is pretty cool, and accessible: http://www.youtube.com/watch?v=drnq_6ffTbo http://www.youtube.com/watch?v=drnq_6ffTbo