Author

Books by Katie Mack

Katie Mack is a theoretical astrophysicist and cosmologist at the Perimeter Institute for Theoretical Physics in Canada. She studies dark matter, the early universe, and cosmological phase transitions. Mack is widely known for her science communication on social media, where she has built a large following for her ability to explain cutting-edge physics with clarity and wit. The End of Everything is her first book. She has written for Scientific American, Slate, and Sky and Telescope, among others.