Measuring Distances in Space

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This lecture explores cosmic distance measurement, emphasizing its importance for astronomy and the challenges involved. We will discuss the Cosmic Distance Ladder, including methods like Cepheid variable stars, RR Lyrae stars, and advanced techniques such as interferometry. The session highlights the implications of accuracy in calculating the universe's age and understanding the Hubble constant. Concluding with existing inconsistencies and future innovations, the lecture aims to provide a...