But if we did a little thought experiment — as Einstein was very fond of doing — we could imagine putting the Sun crushed down to six kilometers, and putting a tiny little Earth around it in orbit, maybe 30 kilometers outside of the black-hole sun.
Pero si hiciéramos un pequeño experimento mental de los que les gustaba hacer a Einstein podríamos imaginar comprimir el Sol en 6 kilómetros y ponerle una pequeña Tierra en órbita quizá a 30 km del Sol agujero negro.