It is about the chapter keeping time with the skies from class 8 science book

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"Keeping Time with the Skies" is an educational module exploring the relationship between celestial bodies and timekeeping. It begins with observations of the Moon's phases and progresses to understanding the creation of various calendars based on natural cycles. The course delves into how festivals correlate with lunar, luni-solar, and sidereal calendars, highlighting differences with the Gregorian calendar. It outlines the purposes and functions of artificial satellites, including ISRO's...