An earlier universe existed before the Big Bang and can still be observed today, Sir Roger Penrose has said, as he received the Nobel Prize for Physics. Sir Roger, 89, who won the honour for his seminal work proving that black holes exist, said he had found six ‘warm’ points in the sky (dubbed ‘Hawking
Here's a counterpoint by another astrophysicist who writes for Forbes on why no such evidence exists yet, contrary to Penrose's statements. archive link