Have you ever wondered if there are parallel universes? Earlier this year, a NASA study suggested there might be another universe where time goes backwards. Could that be a universe made of antimatter? Why did matter win over antimatter after the Big Bang? If there is an antimatter universe out there, does that mean we all have evil twins? Join Peter and Richard as they welcome science journalist and NASA Senior Communications Specialist Liz Landau. Show notes: https://whatifshow.com/podcast Join hosts Peter Schmiedchen and Richard Garner with some of the world’s top thinkers in science, astronomy, technology, academia and futurism to ponder some of your most popular What If videos.   Subscribe to this podcast and please rate & review us. Thanks for being part of the What If community as we embark on an epic exploration of possibilities. Join us online: Website https://whatifshow.com/podcast YouTube https://www.youtube.com/WhatIfScienceShow Facebook https://www.facebook.com/What.If.science Instagram https://www.instagram.com/whatif.show Hosts: Peter Schmiedchen and Richard Garner Executive producer: Steve Hulford Supervising producer: Richard Garner Producers: Demid Tumanov and Stephen Henrik Channel supervisor: Raphael Faeh  Social media: Saida Mirzalimova Research: Jay Moon Trailer: Evan Yue Artwork: Alex Griffith Production: Underknown Support the show: https://www.patreon.com/whatifshow See omnystudio.com/listener for privacy information.