Explore the fascinating world of neutron stars and black holes in this 43-minute astronomy lecture. Delve into the remnants of stellar collapse, examining the unique properties of neutron stars and their role as cosmic lighthouses. Investigate the fundamental principles of special and general relativity, including length contraction, time dilation, and gravitational lensing. Discover the nature of gravitational waves and their significance in astrophysics. Uncover the formation process, characteristics, and observational evidence for black holes, from stellar-mass to supermassive varieties. Visualize the mind-bending concepts of event horizons and the bizarre physics inside black holes. Contemplate the experience of falling into a black hole, from infinite time dilation to the unpleasant fate that awaits. Enhance your understanding with referenced videos on special relativity, gravity visualization, gravitational waves, and black hole fundamentals.