What's Happening?
The Moon is gradually moving away from Earth at a rate of 1.5 inches per year due to tidal forces. Scientists measure this distance using lasers bounced off mirrors placed on the Moon. The gravitational pull from Earth's tidal bulges causes the Moon to speed up and increase its orbital size. This phenomenon affects Earth's rotation, making days slightly longer over time.
Why It's Important?
The increasing distance between the Moon and Earth has implications for tidal patterns and Earth's rotational dynamics. Understanding these changes helps scientists study the long-term evolution of the Earth-Moon system and its impact on planetary science. The gradual shift also provides insights into the history of Earth's formation and the future of celestial mechanics.