Ancient planets similar to current ones

2008/12/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria

• Astronomia

Before creating the planets of the Solar System, bodies called planetesimals were formed, when the large cloud of clouds and starting gases condensed. Well, although these planetesimals were very small (they could have up to 160 kilometers in diameter), they were not simple sets of stony, but they had a molten core, like the current planets. A team of researchers from the Massachusetts Institute of Technology and the University of Toronto have reached this conclusion, analyzing some fragments of rocks, acondrites, of those planetesimales. In fact, they saw that in order to have the magnetic fields that the acondrites have, the planetesimals necessarily had to have a molten core.