A cura di @NedCuttle21(Ulm).
Secondo alcuni scienziati, tra cui Roger Penrose, nella radiazione cosmica di fondo sarebbero registrate le tracce di un universo che ha preceduto il nostro e che quindi confermerebbero la validità della teoria nota come universo oscillante o modello ciclico. Di questa ipotesi parla un articolo pubblicato su The National.
It is one of those questions only children and professors ask – what was there before the Big Bang?
The world-famous physicist Stephen Hawking liked to dismiss this particular cosmic riddle by insisting it made no more sense than asking what is north of the North Pole. As time itself began at the moment of the Big Bang, he argued, it is simply meaningless to ask what came before.
But now, a former colleague of the late Prof Hawking has not only asked the same question, but claims to have glimpsed the answer.
According to Professor Sir Roger Penrose of the University of Oxford, our universe still carries the scars of the events of our universe’s predecessor, which vanished 14 billion years ago.
Prof Penrose, one of the world’s most distinguished theoretical physicists, claims evidence suggests our universe is just the latest in an infinite series, each emerging phoenix-like from its predecessor in a Big Bang.
Immagine da Wikimedia.