Katie Mack was recently appointed as Perimeter’s inaugural Hawking Chair in Cosmology and Science Communication. An adept science communicator, she is best known as @Astrokatie to her 400,000+ Twitter followers. She published her first book in 2020, The End of Everything (Astrophysically Speaking), in which she explains the various ways our universe could come to its end. During this conversation, she tells us about her early interactions with Stephen Hawking, how she became fascinated with the universe’s ultimate fate, and why she is so passionate about sharing her love of science with the world. Conversations at the Perimeter is co-hosted by quantum physicist and lecturer Lauren Hayward and journalist-turned-science communicator Colin Hunter. In each episode, they chat with a guest scientist about their research, their motivations, the challenges they encounter, and the drive that keeps them searching for answers. The podcast is produced by the Perimeter Institute for Theoretical Physics, a not-for-profit, charitable organization supported by a unique public-private model, including the Governments of Ontario and Canada. Perimeter’s educational outreach initiatives, including Conversations at the Perimeter, are made possible in part by the support of donors like you. Be part of the equation: perimeterinstitute.ca/donate