"Aún no sabemos si los universos paralelos existen": Christophe Galfard, el discípulo de Stephen Hawking, les responde a nuestros lectores You might have by now done the quiz prior to. Consequently it is possible to not get started it all over again. Quiz is loading... It's essential to sign up https://www.youtube.com/watch?v=5LF34uf-LC4