On today’s episode, we dive into NASA's new RAMFIRE project to 3D print novel rocket parts. We also discuss a novel frictionless material built on the nano-level, and a new historical model that explains why Neanderthal DNA is so varied in the modern human population. Every Friday, join hosts MJ Banias and Stephanie Gerk as they roundup the latest science and tech stories from the pages of The Debrief. From far-future technology to space travel to strange physics that alters our perception of the universe, The Debrief Weekly Report is meant for the dreamers who love the science and technology of the future.   For the articles discussed in this week’s episode, visit The Debrief at: https://thedebrief.org/   Follow The Debrief on Twitter: https://twitter.com/Debriefmedia Follow MJ Banias on Twitter: https://twitter.com/mjbanias Follow Stephanie Gerk on Twitter: https://twitter.com/stephgerk   Have something to tell us? Email the show at: weeklyreport@thedebrief.org