The Expansion Rate

Sep 6, 2023 ... Cosmologists call this a singularity. What was the universe like at the beginning of the big bang? According to the theory, it was extremely ... Events before the Big Bang, are simply not defined, because there's no way one could measure what happened at them. This kind of beginning to the universe, and ... 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 9, 2024 ... To those who lived before the 20th century, even if these events took place an hour later, everything would happen in the same way: the time ... Apr 22, 2020 ... In this scenario, the horizon is defined as how far observers can see before the bounce occurs. “The distance that light can propagate before ... May 5, 2006 ... ... the universe must be at least a trillion years old with many big bangs happening before our own. With each bang, the theory predicts that ... Oct 24, 2019 ... Kaiser and his colleagues attempted to work out what the earliest phases of reheating — that bridge interval at the end of cosmic inflation and ... Nov 24, 2023 ... What does the Big Bang Theory say about what existed before creation? The Theory lays it out that before the Universe as we know it came ... ... before time: what existed before the fabled big bang. Semi-Technical ... the universe began,” which is angering traditional advocates of big bang model. There is no 'at the same time as' until the universe has differentiated to the point where one event can be temporally related to other events via an observer.