Origin of the moon

This hypothesis suggests that the Moon was once part of the Earth and spun off due to the Earth's rapid rotation in its early primordial times. This idea highlights the exchange of angular momentum between the Earth and the Moon, contributing to the lengthening of Earth's day over time.
 George Howard Darwin England 1879 Origin of the moon

This hypothesis suggests that the Moon was once part of the Earth and spun off due to the Earth's rapid rotation in its early primordial times. This idea highlights the exchange of angular momentum between the Earth and the Moon, contributing to the lengthening of Earth's day over time.