Boltzmann Brains

Apr 21, 2022 ... ... what happened before the Big Bang. Essentially, they said, the universe has no boundary (beginning), just as there is no point north of the ... 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 ... Mar 4, 2019 ... ... big bang), and before the oldest-known galaxies existed (400 million years after the big bang). The ultraviolet light emitted by the first ... What was before the Big Bang? And how do we know it happened? Let BBC Science Focus give you the low down on the birth of The Universe. Nov 11, 2010 ... Other Big Bangs: Maybe the universe has expansion/collapse cycles? Each cycle would start with a Big Bang, expand, level out, contract, and end ... Jun 30, 2007 ... The idea that the universe erupted with a Big Bang explosion has been a big barrier in scientific attempts to understand the origin of our expanding universe. Until recently, scientists could only guess at what lay past the edge of space-time. However, as pioneering theoretical physicist Laura Mersini-Houghton ... Aug 8, 2019 ... It's going to be very exciting to see what it will reveal about dark matter and if its findings can be used to peak into the times before the ... Jan 25, 2017 ... I talked about different ways the universe could have existed before the Big Bang, classifying models into four possibilities. Jan 14, 2024 ... Prior to this expansion the universe was very hot and dense. There are theories that it was infinite then since there seems to be several ...