The motion of the Earth due to the Moon’s gravitational pull can be observed through precise measurements and the study of the Earth-Moon system’s dynamics. For instance, the Earth and Moon actually orbit around their common center of mass (the barycenter), which is located inside the Earth. This causes the Earth to have a slight wobble as it orbits the Sun. This wobble can be detected with accurate instruments.
How can we observe the motion of the Earth due to the Moon’s gravitational pull, even if it is not easily noticeable?
Share
We can observe Earth’s motion due to the Moon’s gravitational pull through tidal effects. The Moon’s gravity causes ocean tides and slightly shifts Earth’s position. Precise measurements with satellite data and lunar laser ranging can detect these small movements, illustrating the gravitational interaction between the Earth and Moon.