Ancient Asteroid Unlocks 4.6-Billion-Year-Old Magnetic Secrets of the Solar System

A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from Jupiter to Neptune. Tiny grains from a distant asteroid are offering new insights into the magnetic forces that shaped the outer regions of the solar system over 4.6 billion years ago. Scientists at MIT and other institutions [...]

from SciTechDaily https://ift.tt/xL6XHVf