Observational Tests of Pre-Big Bang Models

Aug 21, 2006 ... Armed with string theory, Kaku and others speculate that before our Big Bang, there were simply more universes. The Big Bang should have created equal amounts of matter and antimatter. So ... One of the greatest challenges in physics is to figure out what happened ... Dec 2, 2018 ... What existed before the big bang? Did something have to be be there in order to go boom? – Ethan, 10, Sydney. Ethan, what a question. To ... Sep 17, 2014 ... I- I don't understand how we know that the big bang is really the beginning. Like, what happened before the big bang? Hank: Well. Okay. Uh... Aug 27, 2014 ... Inflation certainly occurs after the cosmological singularity, but before several important events of the Big Bang. In other words, the ... Mar 16, 2023 ... The strongest evidence for a Universe before the Big Bang · they were generated by the Sachs-Wolfe effect and are due to inflation, · they were ... Mar 14, 2019 ... Around 13.7 billion years ago, our Universe sprang into existence, but what was around before the Big Bang? In an episode of Star Talk ... Nov 29, 2010 ... Concentric circles on an image of the early universe are an imprint of violent events before the big bang, according to a new study. ... before time: what existed before the fabled big bang. Semi-Technical ... the universe began,” which is angering traditional advocates of big bang model. May 24, 2019 ... Professor Hiranya Peiris (UCL Physics & Astronomy) discusses the origins of the universe, and how the science fiction author Arthur C Clarke ...