Dr. Marek Górski discusses fascinating issues concerning the expansion of the Universe and its slowdown. The talk focuses on Polish research on cosmic distances, conducted from the Atacama Desert, where the Polish observatory is located. Dr. Górski explains how discoveries related to the expansion of the Universe affect our understanding of its nature and beginning, and how Albert Einstein and other scientists contributed to this knowledge. We invite you to watch, Maciej Kawecki & Dr. Marek Górski | This is IT.