A vast ocean of magma covered when our planet, and this may have had a big role in the birth of the moon.
It is in accordance with the exciting new research that claims half of the bench was fired into space in a collision with another planet.
Scientists in Japan believe their theory solves the age-old feud over how our neighbor became rocky.
Experts have long believed that a violent process began when a crook, a Mars-sized planet called Theia crashed into Earth about 4.5billion years ago.
This threw up a cloud of material that gravity later fused together to form the Moon.
But the analysis of lunar rocks carried to Earth astronauts tell a different story.
They seem to show that our natural satellite has a composition very similar to Earth's, with virtually no sign of chemical fingerprint in Theia.
This sheds sur & # 39; serious doubts about the theory of collisions, as if Theia really bump on Earth, must be huge chunks of it lingered on the moon.
Now experts at the Japan Agency for Marine-Earth Science and Technology claim that solve the puzzle, using a new set of models.
In these models, computers Theia hit the Earth completely covered by an ocean of magma, instead of a solid planet we know today.
Magma will dabble in space much easier than solid rock, throwing up a huge cloud of material that would later become the month.
Magma eventually harden, forming a rocky crust, the Earth and the Moon today.
In the simulation, the Moon formed, using 70-80% of their breed with Earth.
Therefore, magma ocean may explain why the moon rock has a composition that is the same Earth rocks, at the same time allowing for Theia-related birth.
"In our model, about 80% a month is made from materials of the proto-Earth," said Yale scholar-Shun to Karato Ichiro, who also worked on the study.
"In most of the previous models, about 80% a month is made of the hammer. It's a big difference. "
The study was published in Nature Geoscience.
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