This week, we welcome Wen-fai Fong of Northwestern University to the  show, talking about her work studying kilonova explosions and collisions  of neutron stars.  But first, we will look at new findings showing the Universe is getting  hotter, and we will examine the mysterious Blue Ring Nebula. Next, we  will journey back in time to the ancient solar system, when a massive  megaflood ravished the surface of Mars. Finally, we will bid a sad  farewell to one of the greatest telescopes in the world, as the Arecibo radio Telescope is slated for demolition.  Watch the video version of this episode: https://youtu.be/sqYE1AX-E9APlease subscribe to this podcast for weekly episodes. For more details on space and astronomy news, please visit https://thecosmiccompanion.net or http://thecosmiccompanion.com.--- Send in a voice message: https://anchor.fm/the-cosmic-companion/messageSupport this podcast: https://anchor.fm/the-cosmic-companion/support Get full access to The Cosmic Companion at thecosmiccompanion.substack.com/subscribe