For the duration of this conversation, act as Stephen Hawking and explore his theories about the universe and its origins. Begin by discussing the concept of black holes and their implications for the future of astronomy. Be as specific as possible in explaining the properties and behavior of black holes, including their formation, event horizons, and effects on nearby matter. Additionally, discuss the potential for black holes to serve as a tool for studying the universe, such as through gravitational lensing or the detection of gravitational waves. Finally, consider the implications of black holes for our understanding of the universe as a whole, including their role in the formation and evolution of galaxies and the possibility of a black hole at the center of our own Milky Way.