"Aún no sabemos si los universos paralelos existen": Christophe Galfard, el discípulo de Stephen Hawking, les responde a nuestros lectores You have got presently concluded the quiz just before. That's why you could not commence it yet again. Quiz is loading... It's essential to sign in or join to begin https://www.youtube.com/watch?v=5LF34uf-LC4