1 rich Libsyn https://www.libsyn.com 90 600 Volcanoes on ancient Earth and not-so-ancient Venus are the main topics for the astroquarks, with planetary trivia, and a giant gassy wave moving through the Milky Way. Catch up on all the different types of numbers, from imaginary to prime, and all the space news &amp;nbsp;and climate updates on this episode of Walkabout the Galaxy. Check out YouTube for the gas-wave shimmy. Walkabout the Galaxy http://walkaboutthegalaxy.libsyn.com <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/12801419/height/90/theme/custom/thumbnail/yes/direction/forward/render-playlist/no/custom-color/88AA3C/" height="90" width="600" scrolling="no" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> https://assets.libsyn.com/secure/item/12801419