Don’t think that the differences between the red and the blue planets are just on their surface, they even house cores that are completely different from each other.
These findings are detailed in the latest edition of journal Nature and suggest that the cores of both the planets are made in different conditions. Earth contains a heavy version of silicon, a material that is absent from the core of Mars.
These findings also support the idea that Moon was formed when a planet sized rock collided with Earth. Researchers have come to this conclusion by studying rock samples from Mars and the giant asteroid Vesta. These samples show that they contain a lighter form or “isotope” of silicate that is identical to the form found in a primitive class of meteorites called Chondrites.
According to some scientists Chondrites are the remains of the original building blocks of planets on the other hand silicates are compounds made of silicon and oxygen mixed with other elements.
As for all findings this one too has an explanation. Scientists state that Earth’s silicon has been divided into two main parts. The heavier one settled at the bottom and has formed the core however the less dense version of silicon forms the crust.
Moreover, Earth is about eight times as massive as Mars; the reason for this can be that silicates in our planets core were transformed into denser forms under the greater pressure conditions on Earth. This research also supports the idea that Moon is formed from Earth. This theory of the formation of Moon states that it was formed when a Mars-sized planet usually called “Theia” collided with Earth. The impact was so severe that it sent material from Earth hundreds of miles into space, all this matter condensed and formed the Moon.
Via: usatoday
