Explore the fascinating world of astrophysics through a captivating talk by Katie Mack, delivered at the Perimeter Institute's Inspiring Future Women in Science event for International Women's Day 2020. Delve into complex topics such as dark matter, black holes, and the cosmic microwave background while gaining insights into Mack's personal journey in the field. Learn about her early experiences, including working the night shift at the Super-Kamiokande neutrino detector in Japan as a high school student. Discover the challenges faced in pursuing a career in astrophysics and gain valuable advice for aspiring scientists. From the formation of the first stars and galaxies to the mysteries of dark energy and giant voids, this talk covers a wide range of cosmic phenomena, offering an inspiring look at the wonders of the universe and the path to exploring them through physics.