The moon was a piece of earth?

The moon and other rocky planets inside the solar system were hit by far more violent effects than previously thought, two NASA spacecraft discovered this.

>>>The moon is separated from Earth?

NASA's Grail dual satellite pair has created a super-accurate gravity map of the moon, showing that its crust is almost completely crushed into powder. The surprising results showed that Earth, Mercury, Venus and Mars suffered a similar impact millions of years ago, the researchers said.

This discovery helps scientists understand what happened in the early stages of planetary history.

The new results shed light on how the moon was formed, and the results of the study could help scientists better understand where life can be found today on Mars. , if it ever existed.

The $ 496 million dual Grail satellite launched in December 2011 to map the moon's gravitational field with unprecedented accuracy.

Dual probes, named Ebb and Flow, hover in the formation around the moon, detecting small changes in the distance between them caused by mountains, craters and mass concentration on the surface. face of the moon.

Grail dual satellites used such measurements to create a new moon gravity map. This map has revealed some interesting information about the moon.

The moon's crust is extremely porous, indicating that it has been fractured by a multitude of long-lasting effects. The crust is thinner than previously thought - only 21 to 27 miles (34 to 43km), compared to the previous estimate of 30 to 40 miles (48 to 64km).

Ebb and Flow also discovered many large, long and narrow structures that are below the moon's surface, which can extend up to 300 miles (480 km). The "dikes" under the surface of solid magma are covered by craters, which indicates they are preceded by the most violent effects of the moon.

The dykes can only form if the crust of the moon has been expanded, to make room for magma, the researchers said. This will happen if the inside of the moon has warmed and expanded, as predicted by the leading theory of the origin of the moon - the giant impact hypothesis.

This idea conceded that a planet the size of Mars had hit Earth about 4.5 billion years ago, and the moon combined from the pieces of the earth that had been blown into space.

The process of building the moon from debris creates a cooler moon inside and warmer on the outside and then what naturally happens is that the inside will warm up and expand throughout the first billion years. .

This was the theory predicted a long time ago, but there is no direct observation until the above data of Grail.