New hypothesis about the origin of the Moon

The scientists at the University of Harvard (USA) has launched a new hypothesis that the Moon was separated from the Earth, instead of was being formed after the collision between a celestial body and our planet.

In a study was published in the Science Journal on Thursday (17/10), Dr. Sarah Stewart and Matija Cuk of Harvard University came up with a new theory about the origin of the Moon. They believe that the Moon was once a part of the Earth before breaking out into a natural satellite revolving around our planet.

According to the new theory of the scientists from Harvard University, the Earth had turned much faster rate at the time the Moon was formed. Specifically, a day on our planet at that time only lasts for 2-3 hours.

With such a fast spin speed, a huge force generated enough material to shoot the Earth formed the Moon. Then the Earth reached the current rotation speed due to the gravitational interaction between its orbit around the Sun and the Moon.

The scientists say their new hypothesis may help to explain why the Earth and the Moon have chemical composition and the same.

However, the new theory by Dr. Sarah Stewart and Matija Cuk completely different than the theory that many scientists believe today, that the moon was created from the material after a collision between a natural giant and the Earth.