Astrophysicist Chiara Mingarelli joins TWiV to discuss her career and her work using pulse timing arrays to study the gravitational wave background, ripples in the fabric of spacetime that are caused by events such as the merging of black holes. Hosts: Vincent Racaniello, Rich Condit, Kathy Spindler, and Angela Mingarelli Guest: Chirara Mingarelli Subscribe (free): Apple Podcasts, Google Podcasts, RSS, email Become a patron of TWiV! Links for this episode Support MicrobeTV with a Spike t-shirt (Vaccinated.us) with promo code MicrobeTV International Scientific Coordinator Position (agajewski at icsnicaragua.org for more info) Seeing the gravitational wave universe (Science) Timestamps by Jolene. Thanks! Weekly Picks Angela – OpenAI Playground and Nature Milestones: T cells Chiara – The Biggest Ideas in the Universe by Sean Carroll Kathy – Recycling PVC and here and here Rich – Brome Bird Care Squirrel Buster Plus  (Bonus pick: 1971 Volvo 142 Commercial – With John Cameron Swayze) Vincent – Journey to the Microcosmos Intro music is by Ronald Jenkees Send your virology questions and comments to [email protected]