* 00/12/26      s01e01 - Volcanoes
* 01/01/02      s01e02 - Fire In The Sky - Comets
* 01/01/09      s01e03 - Protons
* 01/01/16      s01e04 - A Red Blood Cell
* 01/01/23      s01e05 - Voyager Space Probes
* 02/12/26      s02e01 - The Morning After The Night Before
* 03/01/02      s02e02 - Supermassive Black Holes
* 03/01/09      s02e03 - Recalling The Past
* 03/01/16      s02e04 - Flu
* 03/01/23      s02e05 - Music - Sound