Space: rewritten the origin of asteroids, born planetary clashes

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Meteorites are the "witnesses" who can tell the story of the entire Solar System

Space: rewritten the origin of asteroids, born planetary clashes


Rewrote the origin of asteroids: the most 'primitive were born at least 4 billion years ago as a' product 'of violent clashes between' embryos' of planets and not, as previously believed, the 'bricks' in the early solar system via training. Are the results of a work, published in Nature by a team led by Brandon Johnson University 'American Purdue, which helps to reconstruct the history of planet formation. Meteorites, ie the 'stones' cosmic falling or have fallen on our planet, are the 'witnesses' are able to tell the history of the solar system since its origin. The vast majority of these meteorites, called chondrites, have a particularity ': are small and special balls of molten rock called' condrule 'whose origin is not' never been well understood. "Understand the origin - said Jay Melosh, one of the authors of the study - and 'as a spy in a keyhole: you can not see everything there' in the room but you can have a clear picture of its own part. In this case, one frame of the earliest stages of the solar system. " According to many scientists, the meteorite fragments would still intact planets in their earliest stages of formation. Analyzing but 'the particular spheres which form the structure and creating computer models on their possible origin, American researchers now suggest that meteorites of this type would otherwise have formed the enormous heat of the impact between the planets in formation. So meteorites of this type would not be fragments of the embryos of planets but rather 'materials are whether created by collisions between planets. A sort of 'processed product' is very different from than previously thought and that would turn what we know about the early stages of the solar system, as the dynamics that led to the creation of planets, comets and asteroids