Mars and Mercury were created out of what's left of the Earth and Venus
Earth and Venus formed from a thick ring
According to experts from the University of California, planets such as Mars and Mercury were formed exclusively of protoplanetary material that is left over from the formation of the Earth and Venus. "This model explains many of the characteristics of Marx and Mercury," - said Brad Hansen of the University of California. "In our picture of planets Mars and Mercury - this is, basically, by-products of the Earth and Venus," - says Hansen.
Many modern astronomers to some extent agree that the Earth and other planets with solid surfaces formed of a thin disk of gas and dust around the Sun about 4.5 billion years ago. With the passage of time, the microscopic dust particles combined into more and larger fragments, and then came the union of these major "building blocks" of a full-fledged planet. Most simulations have suggested that the substance in the protoplanetary disk solar system was distributed approximately evenly around a young star. "While it is logical, but this theory has a number of inconsistencies.
If the primary substance of the Sun was uniform, then why the planets have different size and very different characteristics?" - Asks Andrei Yudin, an astrophysicist at the Institute of Astrophysics in Canada. Scientists note that in the reality of Earth and Venus are much more massive than their nearest neighbors, Mars and Mercury, respectively. In addition, the last two planets orbit much more elongated as compared to the orbits of Earth and Venus.
"traditional explanation can be reduced to the notion of" chaotic formation, "but not all of the properties of the planets can be explained in this way," - said Yudin. Such a point of view stick and Californian scientists who believe that in reality our gas-dust disk composed of several rings of matter, which are located at different distances from the Sun. In this scenario, Earth and Venus formed from a thick ring, located in the so-called "inner solar system.
" When young Earth and Venus revolved around the sun, they will inevitably pass through clouds of dust, rocks and gas. Some of this material conquer planets, and often discarded in the outer or inner layers. "If this happened, the particles passed into a new orbit," - says Hansen. According to computer models, produced in the U.S. and Canada, it is from these "garbage" and later were formed Mars and Mercury. According to astronomers, Venus and Mercury initially took myself about 90% of the heavy components clouds, while the remaining 10% accounted for the other two planets.
.jpg)
