This Enigmatic Asteroid May Originated from an Unidentified Planet in the Solar System

Nature Astronomy comes to rebut the cards as to its origin. If Vesta was not a protoplanet, the asteroid could, however, have been detached from its original planet.

Differentiation or birth process of rocky planets

Do you know how a rocky planet is born? If we put aside a process that lasts millions of years, a unique process, what we know, allows them to take this telluric characteristic that we find in the earth, Mars, Venus or Mercury.

This process is differentiation. This takes place when the protoplanet (baby planet) is in its fusion phase which therefore allows the birth of the planetary nucleus, a coat and its crust. During this primordial stage, the different elements that make up the protoplanet will separate, the heaviests will head towards the center (the nucleus) and the lightest will accommodate closer to the surface (coat and crust).

We thought then, due to 14 months of observation of Vesta by the mission Dawn of NASA which had started in July 2011, that the asteroid was in fact “A surviving protoplanet that seems to have undergone early accretion and to have differentiated itself, forming an iron nucleus which could have fueled a magnetic dynamo”Could we read in a 2012 study.

Thus, Vesta the asteroid would therefore be a baby planet who has never managed to finish his training and take place, like his sisters, in the solar system. However, a recent study comes back the asteroid “in its place”.

Vesta, an asteroid more than a planet in the making?

Is not planet who wants. Thus, a new study came to contradict the previous conclusions rendered on the basis of data analysis collected by the mission Dawn. Indeed, by looking at it, and by performing new calculations, the scientists responsible for the study published in Nature Astronomyconcluded that ultimately Vesta did not really have a nucleus as you could think before.

Thus, the second largest asteroid in the main belt was assigned two hypotheses as to its alleged origin:

• Vesta had seen the differentiation process began, but the latter stopped due to rapid cooling. Thus, the asteroid could have claimed a status of protoplanet until the differentiation ends. This hypothesis could be validated by the presence of rock resulting from a fusion process.
• Vesta has never had planetary characteristics except to have belonged to an unknown protoplanet whose birth would go back to the origins of the solar system. The asteroid would therefore only be a planetary debris resulting from a collision a few billion years ago.

If the fate of Vesta has therefore been revised, scientists agree that it is impossible, at present, to know what hypothesis is true. Thus, future work will have to be carried out to determine the exact origin of Vesta which for the moment retains its asteroid status.

Source : Universe Today