A podcast episode explores the concept of absolute zero, the lowest possible temperature. The episode is titled Absolute Zero and is numbered 3402. It delves into the hunt for achieving this temperature.

Further information about the episode can be found through the source. The episode is part of a series called The Engines of Our Ingenuity. Details about the content and discussion in the episode are not provided here, but the source offers more information about the topic of absolute zero and the efforts to reach it.