Scientists identify ancient "planet factory" dust ring beyond Jupiter

Beyond the orbit of Jupiter, in the Solar System's earliest epoch, a vast ring of dust and gas served as the crucible from which many worlds were born. Scientists have now confirmed the existence of this ancient 'planet factory' not through distant observation, but through the chemical memory preserved in meteorites that have fallen to Earth — fragments whose shared isotopic signatures betray a common origin. The discovery reframes our understanding of how the Solar System came to be arranged as it is, and reminds us that the rocks beneath our feet may carry the oldest stories in our cosmic ne