Explore the fascinating intricacies of Earth's movement in this 22-minute educational video by Vsauce. Delve into the concepts of meridians, subsolar points, and the unique Lahaina Noon phenomenon. Discover the complexities of measuring time, including the definition of a day, solar days, and Earth's rotation. Examine Earth's tilt and its effects on our planet's seasons. Learn about the evolution of calendars, from the Julian to the Gregorian, and understand the necessity of leap days. Investigate Earth's movement within our solar system and its journey through the universe. Gain insights into the cosmic microwave background and its significance in understanding our planet's motion in space.