Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Explore the intricacies of distance measurement in astronomy through this comprehensive lecture by Prof. Bożena Czerny from the Center for Theoretical Physics, PAS. Delve into the challenges of measuring cosmic distances beyond our Solar System and understand how these measurements are crucial for determining the sizes, masses, and luminosities of celestial objects. Learn about the standard methods of distance measurement, including the concept of the distance ladder, and discover potential shortcuts that bypass traditional techniques. Examine how quasars are being utilized as a novel approach to cosmic distance measurement, and consider the implications of these methods for testing physics at extreme distances and timescales. Reflect on the self-consistency of our current understanding of the Universe and how distance measurement plays a pivotal role in shaping our cosmic perspective.