text: The Boomerang Nebula is the closest natural place in the universe that approaches this concept.
full_question: The Boomerang Nebula is the closest natural place in the universe that approaches this concept. In a lab, sodium atoms at MIT were made to approach 0.1 nano of this concept. The Bose-Einstein condensate and superconductivity exist close to this level. The Rankine zero is another scale for this concept. This concept marks the point where the entropy of an ideal gas reaches its minimum level and thermodynamic temperature scale reaches its lower limit. For 10 points, name the lowest temperature possible.
first_sentence: The Boomerang Nebula is the closest natural place in the universe that approaches this concept.