Spinors

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 ... 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 ... Apr 8, 2019 ... Both properties strongly suggest that the initial state of the Big Bang universe was the result of a very different epoch preceding it—the so- ... 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 ... 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... By most popular accounts, the universe started with a bang some 13.8 billion years ago. But what happened before the Big Bang? And how do we know it happened at ... Jan 9, 2025 ... ... before. And it's this kind of science that lets us understand what's happening in LA today; the descendants of Hubble and Hansen have ... Aug 27, 2014 ... Inflation certainly occurs after the cosmological singularity, but before several important events of the Big Bang. In other words, the ... Aug 19, 2024 ... According to the once-popular idea of the cyclic (or oscillatory) Universe, the current expansion of space could one day revert into a ... 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 ...