Planet Nine: Ancient tapestries, texts may help expose the Solar System's biggest mystery

Planet Nine: Ancient tapestries, texts may help expose the Solar System's biggest mystery



That there is something lurking in the interstellar murk beyond Neptune is almost certain. Exactly what it is and where it is, we’re not so sure. If it truly is the elusive Planet Nine — the theorized planet lurking undiscovered in our solar system — it may take another thousand years before it swings back into view.